corrupt miners
Define what a "corrupt miner" is. I hope you have something better than "miners who do things that I just don't approve of".
corrupt miner = "miners who do things that EVERYONE ELSE (users, exchanges, brokers, merchants, investors) in Bitcoin doesn't approve of."
You might then say, "yeah, well at that point people will just vote with their feet."
Not if the Bitcoin ecosystem is big enough. Everyone will be too invested in Bitcoin's success at that point. Give miners enough power and control, and it won't matter anymore.
Okay so basically the same thing. If the majority disapproves of whatever then it doesn't matter because they have the majority of the hashpower. It's a shit definition and in practice pretty worthless.