Humanitarian dating allows otherwise less attractive and/or overweight girls a chance to date a guy that may normally be out of her league, giving her a sense of hope and confidence. Though the guy knows he can find better women, he genuinely feels it's important to help out less fortunate girls around him, and he also recognizes the goodwill he develops may work to his advantage later in life, whatever it may be.
Reversing the roles, a nice-looking girl dating an ugly, fat guy in most cases is NOT humanitarian dating because most of the time the only reason a hot chick will date a fugly guy is if the fugly guy has money.
It's usually not a good idea to talk about humanitarian dating when on a date.
Jim: Relax, man. It's just humanitarian dating. I heard from her friend she was interested in me, and I felt kind of bad no one's asked her out before. I got tens lined up for me this weekend and I've been blessed to have my share of the spoils, so I'm just doing some charity work tonight.