You can't get any profit from the GM events. You are not supposed to keep the money from entry fees (if there are any), rakes, or whatever, with you.

If you want to host your own bet server - that is, something not involved with the team -, you can get profit from the rake, it's fine. But, if you are doing GM Bets (for the team, obviously), I'm p sure all rake you get must be added to the decap prize.