Reading the guesswork here and the reporting (and lack thereof) on it, there aren’t too many options.

The material was used as kompromat - IOW, if they prosecute the rich and the rich then spill the beans on everyone else in this despicable circle of money and power. Everyone who took bribes or other compensation, people skimming off the top one way or another, got jobs because of the favor of the rich, and of course sex and drugs I’m sure.

Everyone shuts up because everyone is guilty.