Trump will try hard during his presidency to create an atmosphere of personal munificence, in which graft does not matter, because rules and institutions do not matter. He will want to associate economic benefit with personal favor. He will create personal constituencies, and implicate other people in his corruption. That, over time, is what truly subverts the institutions of democracy and the rule of law. If the public cannot be induced to care, the power of the investigators serving at Trump’s pleasure will be diminished all the more.