The institutional morality involved is kind of like taking rent from a mob boss who is using your place as a base for running his money laundering program, his assassination business, and his massage parlour empire.
You're getting good money, and you're not doing anything "wrong" yourself, so you don't really care as long as the money keeps rolling in.
That's how Corporate ethics works these days. Don't ask, don't tell. Just keep banking the cheques.