I said that being a jerk or being nice is irrelevant to ATTRACTING a girl (not keeping a girl - that's different) - but that jerks have an advantage - they don't care about what affect getting the girl is going to have on the girl, other girls they may be dating, children, family, whatever. They also have no problem with lies and deceit. Because of this they get more shots.
And again, that's just the way it is.