You're worth listening to why?

More than once on this blog I've lamented about celebrities speaking out about various things. My basic problem is that most celebrities barely know the difference between the Senate, the House of Representatives and SCOTUS - because after all they're out of touch and proud, yet for some reason we are supposed to listen to them banter on about constitutional abuses as if they're constitutional scholars. Finally someone far more literate has put the complaint into a thoughtful piece of journalism, thus allowing me to not have to think through any good arguments or make any witty banter.