Honestly I think your comment shows part of the problem here, though I do understand your point. But if "mere" employees feel that they are personally in competition with basically the rest of the world it easily becomes a war of attrition and employees become kind of soldier-ants. I'd rather be my own person thank you very much.
People can in fact be loyal and productive in 8 hours per day without being a slacker and maybe have some energy left to partake in society outside of work. Nobody likes people with a bad work-ethic but if a good work-ethic is considered to require regular overtime than maybe it's time to reconsider that concept.