If you criticize your employer by putting other sectors of the company in a fragile position and still think you should not face any consequence, you have no SITG.
Simply put: no symmetry in the risk you are taking => no weight to your words => I just don't care at what you say.
Likewise, if you just learn about a perceived misdeed from a company and all that you can say is "This does not make me want to work there" but it does not make you say "I will not allow myself the benefit of consume something that was achieved through bad working conditions", you have no SITG. You don't work there already, you are not losing anything -> no weight to your words => I don't care at what you say.