Support them by boycotting. I don't understand your statement here. Are you saying that because you have it fairly well, that you should let your labor be as exploited as possible?

If I earn 200k a year, and my employer earns 1MM a year from my labor, why should I not protest for better work conditions, or more % of my labor? If my labor is valuable I should be able to capitalize on it as well.

A worker earning 20k who is making the employer 40k a year is earning a higher % of their labor value than someone making 200k earning 1M a year for the employer.