Say, hypothetically, I'm starting a new company that's extremely tech-heavy and I want to recruit the best engineers in the world. Fairness, recognition for effort, high hiring bar, the best equipment... all things that are important.
Why not go an extra step to be fair and make everyone's compensation public, including the founders? Why not open up the cap table to everyone, employed or potentially-employable? Then there's no question as to whether a candidate is getting a good deal.
What could possibly go wrong?