"Nice guys" who have trouble dating and say "Only assholes get dates" have a flawed view of how dating works.
Do poor people who say "Only assholes get rich" and unelected people "Only assholes get elected" have similarly flawed views of how capitalism and politics work? Why or why not?
Edit: "nice guys" is in quotes above because it is being used as a term of art. See: http://en.wikipedia.org/wiki/Nice_guy and http://moderateleft.com/?p=3763 and particularly the penultimate paragraph of http://zeldalily.com/index.php/2009/04/its-always-the-nice-ones-why-nice-guys-suck/
This may perhaps have caused misunderstanding. My apologies.