If anything, my personality influences what games I play instead of the other way around. That being said, probably partially due to playing a lot of RPGs, I developed a love of telling my own stories and writing at an early age. The stories were what I cared about most when I played games during the PS1 era.

However, I don't think these games have influenced me anymore than books or movies have. I watch a lot of horror stuff, and I don't find myself wanting to do horrible disturbing things to people because of it. Or if looking at the protagonists, I don't find myself becoming dumber due to watching people do stupid stuff in those movies. I read a lot of books which involve a lot of horrible people and horrible situations sometimes (especially in college), and I've never found myself becoming more horrible due to it. Likewise, playing RPGs where people are saving the world has never really caused any noticeable change in my desire to do good that I've noticed. This is just me, though.