This isn't an evil feature. It isn't a pointless feature. In fact it's a critical feature in the running of an organisation.
Email. Calendar. Address Book. A gold mine of absurdly sensitive data.
If you want corporate email on your phone, expect to have the possibility of a remote wipe.
It isnt Microsofts fault that people use it maliciously.
If you ask the user "do you wish to allow administrators to remote wipe your phone allow/deny?" what do you think they'll click ???
People don't care about data loss. Educate someone on how to not lose data, then a week later give them a laptop with a password protected screen saver/login - first thing they'll try to do is remove password.
The amount of company phones I see with no passcode lock is astounding - I can pick your phone up, forward emails to myself and have all your information. Bang.
Don't think data loss is a big deal? If you google "PA Consulting" a top link is how they lost a USB drive.