You're looking at it wrong.
Your best, closest friends. The ones you look forward to hanging out with to let your hair down and blow off some steam. Do you treat each other "nicely" and with utmost respect and show proper decorum? NO. You trash-talk each other, disrespect each other, make fun of each other. But its in a PLAYFUL way. Dating is no different. Women and men seek a relationship that mirrors that environment.
What you view as a guy mistreating the girl is actually a guy treating a girl like she is one of his closest buds.
If you want more success with women, treat them like you do your friends.
---------- Post added 2011-08-19 at 10:47 AM ----------
I think that is the single biggest hangup guys have with dating. They know EXACTLY how to act fun when they are with their buds, but for some reason fail to understand they need to act the same way to pick up girls. The next time you see a girl you like, imagine its not her standing there, its your best bud. Ask yourself "what would I say if he was here right now." And then say it. I'll make it easy, make a comment or observation about something around you that you would say to your bud but you hold back because its the hot girl your heart beats madly for.
---------- Post added 2011-08-19 at 10:56 AM ----------
Oh one more thing - if you don't ask her out, treating her like she's one of your best buds makes you just an entertainer. Be sure to ask her out after a couple funny comments that make her smile. Making her laugh and showing your interest can be intoxicating for the women. You might get shot down for any number of reasons, its not the right time, she's got a bf, whatever. We all get shot down, just keep trying different women for several months until you get one.