I don't understand what you mean. Corporations as a legal structure are built to compete & live or die, governments are not. The point of having political power is to control it for the sake of prosperity. Having a 'death clause' in your government worker's performance would mean you've failed as a political actor to get enough control to guarantee prosperity. That's a bigger threat to the gov than having useless employees. Controlled incompetence, plausible deniability, ect are all useful political tools. Not always needed, but they are still useful tools.

If you want a 'communist corporation', just give every employee shares. You don't need unions or whatever else. You could start a company right now that does that. Some big UK firms do a performance sharing scheme with everybody in the company, even cashiers. Granted it's not much money in real terms, but it's proof how flexible the corporate legal structure can be.