Disobedience would be a breach of contract. This is, of course, an economic decision between alternatives, and you will weigh the trade between the three alternatives of exit, voice, and staying. Voicing criticism is a way to change the situation, but the probability of success depends on whether you are alone in your criticism or find supporters for it. Firms with an institutionalized system of evaluating bosses and with co-determination reduce the cost of voice and make disobedience unnecessary. If you know that your boss cannot observe your behavior, you may be tempted not to commit all your time and effort to the task as stipulated in the labor contract but to put in effort only up to the point where you are not fired for breach of contract.
Minimum behavior is a very subtle form of disobedience.
Your boss will, of course, know from insight into human nature that this form of disobedience may have very detrimental consequences for an organization in a turbulent environment. He will therefore introduce costly control systems to prevent shirking. The company may, on the other hand, introduce a hiring and career system that checks for loyalty as much as for knowledge and skills, and the firm may offer to share with the, employee the savings if it does not need elaborate control systems. You will realize, that it is, therefore, good economics to be loyal to the company and to invest in the reputation of being a loyal employee or associate of the firm. Let me give you a wonderful example of shirking as a form of disobedience that brings down a tyrannical and inefficient government.