That would just spread the corruption around along with the rewards as things which make them more money reward them and things which make less effectively puni

That would just spread the corruption around along with the rewards as things which make them more money reward them and things which make less effectively punish them. Not too much of a difference quantitatively for workers (job security is negatively impacted by the company doing poorly). That would mean that the government is basically 'bribing itself' whenever it does anything that is aligned with the company. That is the opposite of what you would want. Social needs is a nebulous enough term that it outright scares me imagining what twisted definitions of it would arise naturally from sincere attempts to promote it, let alone cynical abuses. Imagine a religious fundamentalist defining 'social needs'. Horrors like 'we should work to keep kids in the closet for social cohesion' and honestly thinking that it is the right thing to do.