The Ninth Circuit says "no," in Perfect 10 v. Visa Int'l, in an opinion written by Judge Smith and joined by Judge Reinhardt; Judge Kozinski dissents. I think Judge Kozinski's opinion is more persuasive as a matter of current law (whatever one thinks the law ought to be), at least as to contributory liability.
As Judge Kozinski points out, "If this were a drug deal ... we would never say that the guy entrusted with delivery of the purchase money is less involved in the transaction than the guy who helps find the seller." And the Ninth Circuit had already held that "the guy who helps find the seller" in copyright infringement cases, knowing that the seller is infringing, is liable.
The quote comes in the vicarious liability section, but it seems fully applicable to contributory infringement, especially since the theory of contributory infringement is closely related to aiding-and-abetting liability. Knowing provision of material assistance to infringers is sufficient for contributory copyright infringement, and providing financial services surely qualifies as material assistance. The majority's attempts to distinguish such assistance from other assistance strike me as unpersuasive.
In any case, whoever is right, this is obviously an issue that bears further watching, in this litigation and in future cases.