If they can afford a CEO that makes millions, the fact that they don't make a ton of profit (this is rhetorical: They definitely do) is immaterial: The margins could be thinner, the workers could be better paid.
Sure, "the goal and purpose of any business to exist is only so that its owner can buy himself a new Ferrari" but... some workers tend to disagree, especially when they feel that they're doing the bulk of the actual of work without a correspondingly large compensation for it.