Agreed, I think companies that foster an environment of growth and learning ultimately become more competitive in the market and have an easier time innovating, so its a big plus from the shareholder equity side, but certainly not their responsibility to elevate each and every employee.
Employees need to take responsibility for their career and growth. I am responsible for continuing my learning and maintaining my skill set. To that end though, I choose to work places that encourage and support that since it's in their own interest.