Depending on how severe the 51% attack is, an attacker could direct their own equipment towards a pool they control and get miners to mine on their pool via higher actual mining earnings. The pool would have higher mining earnings because it wouldn't have its blocks orphaned.
At the end of the day, miners probably won't support the attacker. After all, the miners would be losing money after any 51% attack. The rational thing miners would do is to try to mitigate the 51% attack or to switch off their equipment. Helping the attacker would just be burning through your cash.
I was referring to something along the lines of the attacker would occasionally orphan a block they don't like or refuse to confirm transactions that don't meet certain criteria.
I could see the miners revolting against a 51% attack that double spends transactions on any large scale, or orphans a chain of many blocks.