Earlier quoted context omitted.
Aaron is basically acting as their Ombudsman right now. Google will probably lose some serious revenue from that, because they get a big cut of what Mahalo generates. If Google lost that ad revenue for some other reason, the person responsible might well be fired for it. When Aaron Wall hounds them over it, they'll be more likely to make the right decision.
Google does something like $18Bn per year in revenue and of that about $750MM-$1Bn is from ads on non-Google-run sites. So, I think they care about Mahalo as a source of revenue about >< that much. They're probably more worried about possible anti-trust actions if they just drop Mahalo -- I bet that would shave more off their market cap than losing Mahalo as a customer.
http://investor.google.com/releases/2009Q4_google_earnings.h...