> Large wage increases based on expertise happen because you're able to better sell yourself to _another_ company when changing jobs.
In that case, instead of banding together with Joe Useless to strong-arm the company into setting money on fire (from management's perspective), you're better off changing companies as frequently as the market will tolerate.
False dichotomy. You can do both, and an industry-wide effort to exercise our collective power would likely increase the salaries obtained via either route.
In that case, instead of banding together with Joe Useless to strong-arm the company into setting money on fire (from management's perspective), you're better off changing companies as frequently as the market will tolerate.