I don't read a lot of omegaverse as it's not my cup of tea but I've noticed a few stories with alphas still able to act a consciousness even when affected by the heat of an omega. There's also a particular omegaverse story with the omega just breaking every omega standard through sheer spite, willpower and anger. To me, it seems like people have the capacity to restrain themselves if it's a stronger will to avoid such a situation. Just that it's difficult to act upon for those who aren't matured and educated to even care I guess.
Like Ducky said, the standard us quite broad and mangaka can add changes to it but what I meant is more like: this happened a lot in Omegaverse (or wait...it actually happened a lot in Yaoi in general...)
But yeah...also like what u said it's usually those who don't even try to restrain themselves *but well...if we think about it...if it's really difficult for those with strong wills to stay in conciousness...for those with not such strong wills.... would be more difficult to keep their sanity (● ̄(エ) ̄●)
It seemed like people still don't understand what omegaverse really stand for...(⌒▽⌒)
It's basically a world which alpha and omega can produce hormones/pheromones to seduce eachother and ITS NOT SOMETHING PEOPLE CAN FIGHT WITH- Its an animalistic instinct which can make people lose their sanity and any common sense their lust(or actually the will to mate) will be turn to the EXTREME...like cats in mate season. ٩(๑❛ᴗ❛๑)۶
What can people do about it? Nothing and if people don't take their meds on time/right way it will of course end up like Haga... Omegaverse is made for smut at the first place... there are more and more non smut/healthy bls right here~ I suggest u to not read any smut with omegaverse cuz rape/nonconsensual sexual activity does appear almost all the time there XDDD ┗( T﹏T )┛((yes we need more sweeeet sweet omegaverse smuts MANGAKAS PWEASE)