The image is actually true. Except for how it represents one person (Jeff Bezos) as one person, and it represents all workers as one person. Each one of those many workers receives an absolute sliver of the "water." The drips going to Bezos in the image are massive using an appropriate comparison.
The employing company's owner indirectly legally appropriates the positive and negative results of it, which the employees are jointly de facto responsible for. This is a violation of the moral principle that legal and de facto responsibility should match.
The claim that the employer has a right to these fruits of the employees' labor based on the risk they take on is tautological. Assuming the risk means appropriating the negative fruits.
Worker coops can give non-voting shares to investors
Except fewer people of the younger generation are able to buy into a 401k. People with a 401k don't really represent workers. And workers are at risk because they can be fired when stock goes down or doesn't go up as hoped. Workers can lose their entire job while Bezos loses what is effectively a few numbers to someone of that wealth. Obviously the big CEOs aren't taking home profits as cash, because then it would be easier to tax.