not really.
when it comes to men, that may be the case. the alpha men can usually have any woman they want easily, whereas most other men can't, so they will tend to cheat more. however, when it comes to women, it seems like the omega women cheat just as much as the alpha women, because when it comes to one night stands or casual sex, lots of alpha men have pretty low standards. actually, if anything, the omega women are probably more likely to cheat, because the guy they're with is probably an omega, and they can cheat with an alpha man.
and actually, when you really think about it, there wayyyyyy more alpha women than alpha men. a very wide variety of women are considered alpha by a large number of men. men generally don't agree on how attractive certain women are. but women generally agree who the alpha men are; the really cute, really fit, adolescent model looking guys. pretty much all women consider those guys alpha, whereas most other guys are considered omega. so essentially, you're saying that any guy who doesn't look like a model should only date the least attractive women whereas alny decent looking woman should go for the super hot guys.
and no, i don't agree with you. there is no excuse for cheating and anybody who gets cheated on SHOULD complain. only someone who has no pride in themselves would not complain about being cheated on.