Knowing these people... they're not dumb, they know. But it pays the bills and then some. Ethically, I will have nothing to do with them, and leave it at that, otherwise profanities will fly.
That is microsoft's story, however if I recall correctly, if google were to have bid with the others, the deal was structured such that they couldn't protect android partners. So the lawsuits against android would happen anyway with the difference being google sponsoring the patent trolling against its own android OEMs.