You do, or you end up as miserable as the people that push certain lifestyles. I've never met a person that was an 'advocate' or whatever that was actually happy. They just want everyone else to be as self loathing as they are
"Ah, you miserable creatures! You who think that you are so great! You who judge humanity to be so small! You who wish to reform everything! Why don't you reform yourselves? That task would be sufficient enough."
-Frederick Bastiat
-Frederick Bastiat