Why on earth would you think that? :confused2:
TC is just the sort of client a lawyer wants: well heeled and in need of complex legal assistance. Given that the client is rich, the bill is likely to be paid. It might take some time, but it's gonna happen. Much better than some poor contingency case shmuck.
Lawyers are "hired guns", i.e. mercenaries. They don't WANT to know what the client has DONE. They don't ask.

Having positive knowledge of a client's actions raises the potential for ethical conflicts with their duty as officers of the court. They prefer being in a position of "studied ignorance".
All that lawyers want to know is what are the circumstances of the case so they can defend it plausibly. U.S. jurisprudence is adversarial in nature. It is not principally occupied with determing "truth". Thus lawyers are referred to as advocates not truth-seekers.
A lawyer likes a client who will LISTEN while he outline the legal situation and who is subsequently able to frame his own accounts of attendant circumstances according to the legal risks. Knowing the "truth" can make a lawyer's life unimaginably complicated. Clients who get all "confessional" are a lawyers worst nightmare.
Part of the cleverness of Marty's approach, as BB has pointed out, has been his way of forcing Fields to acknowledge potentially troublesome facts about his client in a way in which he has a professional obligation to take up those issues with that client. AIIIEEEE! That is NOT what Fields really wants to have to do as TC's attorney. Additionally, MR is illuminating clear distinctions between what constitutes TC's own legal interests, which Fields' is ethically bound to serve as his attorney, and the interests of other parties, i.e. DM, Co$, etc.. And he's doing it all the while showing Fields' how TC MAY well have "screwed the pooch".
Mark A. Baker