Taxes are not going to abolish the conditions that allow for the exploitation of labor.

He operates like any other big capitalist though, even if he paid higher taxes he'd still benefit from the exploitation of workers and rent extraction, etc. This is a brilliant PR move by him, not a show of not being aligned with his class. Hell, he said he'd donate his wealth to charity on his death, but you know which charity he picked?

He's still a billionaire, no one becomes a billionaire working 9-5 everyday like a common person. Remember, every cent of profit is an unrealized cent of worker's wages.