For the most part the only time one hears about Congressional ”staffers” is when one of them gets in trouble or embarrasses his boss. Otherwise they seem to be interchangeable. So these guys got together and made a deal with some outside firm, and moved on. They will be replaced shortly. Life goes on.
Hopefully they will be replaced by people who are tired of the corruption rampant at all levels of government now quite obviously present, instead of those who are willing to do anything to enrich themselves.