I find your language extremely troubling. If I'm honest I'm struggling to take you seriously and it seems you are on a particularly self appointed mission. Which is fine. But things like

> but logic suggests at the very least they were sounded out before retiring.

Logic had little to do with it I fear. Secondly the UK tabloidesque vilification of public servants who leverage their expertise when their career is over is tiresome. That is not evidence of "corruption".