Everyone who is interested in earning the most money (without the startup gamble) is already driven toward the top tech companies. Everyone in tech already know

Everyone who is interested in earning the most money (without the startup gamble) is already driven toward the top tech companies. Everyone in tech already knows (at least roughly) which companies are in a market apart from the rest. You can list benefits alongside salary to try and make up for anything you want, but mandatory salary postings won't change anything except waste fewer people's time on interviews for offers they won't accept and make people working for too little money aware of the fact.