I just think angering the people who are supposed to be caring for me is a great way to receive subpar care, I don't care how moral and "above it all" healthcare workers are supposed to be, at the end of the day they're human and if you tell them you don't value their hard work, they may just put in a little less effort than you'd like. (just like you might do the same for a boss who belittles you and refuses to give the raise you feel deserve).

As an example, in many countries where they have socialized healthcare, nurses and doctors do often go on strike, which has always resulted in worse care during those times...