Game theory is still inevitable. Its application to humans may be non-obvious.
In particular, the "games" can operate on the level of non-human actors like genes, or memes, or dollars. Several fields generate much more accurate conclusions when you detach yourself from an anthrocentric viewpoint, eg. evolutionary biology was revolutionized by the idea of genes as selfish actors rather than humans trying to pass along their genes; in particular, it explains such concepts as death, sexual selection, and viruses. Capitalism and bureaucracy both make a lot more sense when you give up the idea of them existing for human betterment and instead take the perspective of them existing simply for the purpose of existing (i.e. those organizations that survive are, well, those organizations that survive; there is nothing morally good or bad about them, but the filter that they passed is simply that they did not go bankrupt or get disbanded).
But underneath those, game theory is still fundamental. You can use it to analyze the incentives and selection pressures on the system, whether they are at sub-human (eg. viral, genetic, molecular), human, or super-human (memetic, capitalist, organizational, bureaucratic, or civilizational) scales.
In particular, the "games" can operate on the level of non-human actors like genes, or memes, or dollars. Several fields generate much more accurate conclusions when you detach yourself from an anthrocentric viewpoint, eg. evolutionary biology was revolutionized by the idea of genes as selfish actors rather than humans trying to pass along their genes; in particular, it explains such concepts as death, sexual selection, and viruses. Capitalism and bureaucracy both make a lot more sense when you give up the idea of them existing for human betterment and instead take the perspective of them existing simply for the purpose of existing (i.e. those organizations that survive are, well, those organizations that survive; there is nothing morally good or bad about them, but the filter that they passed is simply that they did not go bankrupt or get disbanded).
But underneath those, game theory is still fundamental. You can use it to analyze the incentives and selection pressures on the system, whether they are at sub-human (eg. viral, genetic, molecular), human, or super-human (memetic, capitalist, organizational, bureaucratic, or civilizational) scales.