Munchkin Disney - quick question

[Nivlac77]

I am new to Munchkin and just bought the Disney version. Only done a couple of dry run-throughs so far, before I introduce it to my son. Seems like a great game (already thinking of getting the original and Marvel versions) though I have one query. It seems that whoever gets hold of Mickey as an ally is likely to win, as with him you can have any number of allies, which makes him super OP. There is only one curse card for losing allies, so unless you make that player have to sacrifice an ally, they get stronger and stronger every turn (particularly if they have fairy godmother class and can retrieve allies from discard).
Am I missing something here? Many thanks.