Yeah, I would say that my time in academia disillusioned me somewhat, but not to the level that some people here are expressing. I never got the sense that people were falsifying data, directly (but covertly) backstabbing one another, or anything really awful like that.
But there are plenty of disheartening things that don't rise to that level of actual malfeasance. People get so comfortable in their tenured positions that they can lose touch with reality (e.g., the reality of how difficult their grad students' lives are). Even if they don't engage in actual research misconduct, there's a tendency for people to put their thumb on the scale in various ways (often, I think, without being aware of it), many of them connected to a sort of confirmation bias, in terms of who they think is a "good fit" for a job, what kind of work they want to support, etc. In my experience they are at best dismissive and at worst offended by the idea that maybe the current financial/employment model of higher education isn't the best (e.g., that maybe you shouldn't have a two-tiered system of tenure-track and non-ladder faculty with wildly differing payscales, but rather should just have a larger number of people doing varying amounts of teaching and research for varying but roughly comparable levels of pay).
I felt like virtually everyone I met was in some sense committed to the truth, but often they were committed to their own view of the truth, which was usually a defensible and reasonable view but not the only view, and not as clearly distinct from other reasonable views as they felt it was. And they varied considerably in how much they felt it was acceptable or necessary to engage in minor shenanigans in order to keep moving forward (e.g., to what extent they'd compromise their actual beliefs in order to placate journal editors and get something published).
Also, there is often something endearing about how academics can be genuinely emotionally invested, sometimes to the point of rage or ecstasy, in matters so obscure that the average person wouldn't give them a second thought. It's sort of like finding someone who's a fan of some TV show that ran for 12 episodes in 1983 and is adorably gushy about it. Even the people I met who were quite cognizant of making strategic career moves and other such practical stuff still had a lot of this geeky obsession about them.
A lot of this may vary from one field to another. But on the whole there are many worse people in the world than academics.
But there are plenty of disheartening things that don't rise to that level of actual malfeasance. People get so comfortable in their tenured positions that they can lose touch with reality (e.g., the reality of how difficult their grad students' lives are). Even if they don't engage in actual research misconduct, there's a tendency for people to put their thumb on the scale in various ways (often, I think, without being aware of it), many of them connected to a sort of confirmation bias, in terms of who they think is a "good fit" for a job, what kind of work they want to support, etc. In my experience they are at best dismissive and at worst offended by the idea that maybe the current financial/employment model of higher education isn't the best (e.g., that maybe you shouldn't have a two-tiered system of tenure-track and non-ladder faculty with wildly differing payscales, but rather should just have a larger number of people doing varying amounts of teaching and research for varying but roughly comparable levels of pay).
I felt like virtually everyone I met was in some sense committed to the truth, but often they were committed to their own view of the truth, which was usually a defensible and reasonable view but not the only view, and not as clearly distinct from other reasonable views as they felt it was. And they varied considerably in how much they felt it was acceptable or necessary to engage in minor shenanigans in order to keep moving forward (e.g., to what extent they'd compromise their actual beliefs in order to placate journal editors and get something published).
Also, there is often something endearing about how academics can be genuinely emotionally invested, sometimes to the point of rage or ecstasy, in matters so obscure that the average person wouldn't give them a second thought. It's sort of like finding someone who's a fan of some TV show that ran for 12 episodes in 1983 and is adorably gushy about it. Even the people I met who were quite cognizant of making strategic career moves and other such practical stuff still had a lot of this geeky obsession about them.
A lot of this may vary from one field to another. But on the whole there are many worse people in the world than academics.