The persistence of recusal issues appears to have little to do with the legal merits there aren't any but a great deal to do with the process of how we have selected and rejected candidates for judicial office in the past few decades, certainly since the superbly qualified Robert Bork was turned down for a seat on the Supreme Court.
It was often said that enlightened self-interest would push Russia's robber barons, like their American counterparts in the last century, into seeing the merits of a properly enforceable legal framework to regulate both business and politics.
Moreover, for those cases in which either the outcome of trial or intervening legal rulings by other courts raise questions about the merits of the original prosecution, it can often be difficult to get the special attention that is often required in the interests of justice.