Go forth and multiply

[Adrian II]

What makes a human feel fulfilled is always linked to survival in one way or another; it be a good meal, a nice car or an attractive person of the opposite gender [..]

Or getting stone drunk, or smoking cigarettes, or driving recklessly, or ..

Nah, humans clearly have a self-destructive streak that is in no way linked to survival. The balance is different in each individual, but it's there.

the goal is to stay alive as well as passing genes on

Go tell that to homosexuals.

EDIT
By the way, haven't you heard of the theory that genes really use humans to pass themselves on, not the other way around? It's all the rage since 1976 and the publication of The Selfish Gene by Richard Dawkins.