If you don't have what it takes to FOLD pocket aces in this situation then you probably don't have what it takes to win the WSOP. Think about it for a second. You are a favorite to win but against that many hands you don't have the huge advantage you think you do. And even if you win so what? You have 40K that will be absolutely meaningless by the third day. Don't make the mistake of trying to win the tournament in the first hand.

[Incidentally I've played aces against 4 all-in opponents pre-flop in a cash game. But in the WSOP you can't just tell yourself it was +EV and pull another 10K out if you lose.]