Let's put some things into perspective.

The pool is currently hashing w/ 7,132.70 TH/s, The value of a BTC is $622.35.
At this network difficulty Eligius is effectively mining ~$6,366,836.29 /Month.

If WK took 1%, which he doesn't, that would be $63,668.36/Month or $764,020.35/Year.
"Stealing" $420K would be shorting himself about $340K/year.
If I were in WK's position and of a thieving mindset, I'd be thinking about stealing the $6 Mil not the paltry $420K.

WK, we are very grateful that the Eligius pool exists and that you tirelessly give of yourself and your time.
Thanks.

On July 1, after we payoff a little loan that bought our initial mining H/W, we will be 1%'ers (it's the least we can do).
We look forward to the day when we can help compensate WK for his efforts and additionally offer all our NMC payouts.
All we need is an NMC address to forward that miniscule dollar value to him. Hint hint.

That's our .00003 BTC's worth, back to lurking.