Conflicts of interests

http://www.huffingtonpost.com/2010/07/07/virginia-thomas-wife-of-j_n_637596.html

So we have conservative Supreme Court Justice Clarence Thomas. After HIS ruling in favor of Citizens United wife started a political action comittee. She states on her website questions like how do you feel about the healthcare bill passed (this is directed to potential people she will give money to). Also asked is how potential people feel about the Arizona immigration law. Now my thing is this: How can Justice Clarence Thomas not exclude himself from any case that his wife has not or will benefit from? This can and will include things like the immigration law, any case involving corporate money, the healthcare bill. Really one of two things needs to happen: Either he needs to resign or she needs to resign otherwise how can we not question the integrity of the Supreme Court?