Well, a few thoughts. I haven't looked into this in detail, of course, but some general ones: - In this particular case, the issue in question was that one justice's wife (Justice Breyer) owned stock in Nestlé, which acquired Prometheus Laboratories, one of the parties in the case, this year. This fact seems to have come out during the case, and the justice's wife ultimately sold her stock before the case began. Nestlé has pretty powerful brand recognition, so it seems silly to read foul play in that particular interaction. Asking justices to never engage in stock trade and, worse, never allow their families to do so, just in case a situation like this should arise, would be somewhat foolish. We rely instead on disclosure of interests and the ability to recuse oneself if a justice chooses not to clear a conflict of interest. - I don't know of too many financial conflicts that have arisen in the court, particularly recently, that haven't been solved either by something like the above or by recusal. - It's possible you're referring to the issues regarding the healthcare law and the fact that Justice Thomas's wife has campaigned against it. If so, I'd like to see the evidence that she has taken “hundreds of thousands of dollars in lobbying money”. I'm not saying it hasn't happened, just that I haven't seen anyone mention money changing hands—people are mentioning a potential conflict of interest that she's advocating against it, but that's a different matter entirely.