Don't read into what I said. You're adding a bunch there that wasn't in my post.
I said if I do it for roleplaying, I am optimizing my roleplaying. I'm making a choice for ME to roleplay, which increases the roleplaying for ME. I never claimed superiority over other people in some way.
Look at it like this. Player A and player B roleplay equally well. Player A optimizes for combat and player B(me) optimizes for roleplay by picking an "inferior"(your word, not mine, and wrong word to boot) race that fits my concept. That is a choice that optimizes my roleplaying. It makes it easier to fit my concept, even if roleplaying ability is the same.
I mean, Player A and Player B can both roleplay being phenomenal investigators, but if Player B makes the choice to optimize that roleplay by picking up the Prodigy Feat and adding expertise to investigation skill, he has optimized his roleplay.