It's about how genuine their arrogance/humility is.
If a man is genuinely arrogant and has reason to be there's probably girls out there who would either want to knock him down a peg and are attracted to that challenge or those who would want to be the girl who catches this arrogant man
If he's genuinely humble then there would be the girls who find it endearing and are attracted or the ones who take it as a flaw and want to change him and make him more confident aka the fixer upper.
Even the arrogant guy can be seen as a fixer upper...seriously, as a guy just be yourself (and successful

) and you'd be able to land almost any girl you want