Obviously, some certificates are worth a lot more than others, just like diplomas. A real estate "license" at least around here isn't worth much.
Passing the bar is nice, but not necessarily a big deal. Not passing it is bad. Passing the Patent Bar is a fairly big deal. It's much tougher.
The PE thing seems from what I've heard to be one of the loftier things to achieve, aside from "honors" like the Nobel.
It reminds me of used cars that are "Certified Preowned". Dude, I already know it was "preowned", it has 40,000 miles on the clock. I don't need that certified.