So, in many species, aside from providing sperm, it seems like the males often times hurt the overall likelihood of survival for their species (i.e. killing offspring, fighting other males, keeping food/resources away from other members of the species). I understand much of it has to do with procuring the success of their own gene pool, but is it really beneficial in any way to the overall species? Theoretically, aside from reproduction, do any species necessarily benefit from males for survival? Is there a reason they don’t evolve different pro-survival behaviors? Any discussion or comment on this is appreciated.

P.s. This is coming from someone with no zoology education. Just someone who enjoys nature documentaries!