[locutus2002]

No, this is the final table of the WSOP. Show me that cooperating is going to win more money.

It depends substantially on Dannenmann's range of hands to call the push. I estimate that it costs Hachem $2000 in $EV for each hand that Dannenmann has in his range above 80 hands (roughly 99-AA,AK,AQ,KQs,AJs). So if Dannenmann's range is more speculative (which I think it is) Hachem gives up:
$200,000 for a moderate range
$400,000 for a loose range

His EV is about $5.5M so Hachem gives up about ~3.5% to 7% in $EV.

Certainly you wouldn't do this in a cash game (if I ever played one)
Nor would you do this in a SNG

Can you give up 3.5% to 7% EV to have a better chance to fold up a notch in the WSOP? Very player dependent. But not a winning move.

Anyone care to see the calculations PM me they are complicated.

My basic assumptions are:

$EV using ICM
Dannenmann only calls push with AA-QQ.
Barch's Pushing range is { AA-55, AKs-ATs, KQs, AKo-AJo, KQo }
Barch's average hand contains 1 card that is an ace,king, or queen.