A good point well made OP - even if off topic.
Even Ted Heath had his yacht and his piano (and IIRC a military MBE), and of course the Blessed Margaret famously invented Soft Ice Cream when a chemist for Walls......
But this lot (of any political complexion) are just as you describe ..... the likes of Hain and Straw first painted on the radar of those of us of a certain age as NUS activists - and have never yet done a proper job ..... harrrumph!