Why do so many game stories nowadays just focus around "gray morality" as opposed to just portraying good as being good and evil as being evil?

Your characters always just sort of have to be this weird amalgamation of beliefs that when you try to put together, they don't even make sense cause the character's entire personality then just boils down to "lel, i don't care, i'm a fence sitter or something like that." since the devs want to please everyone with their main character instead of just making them their own person with specific sets of beliefs and standards.