[CognitiveLens]

I'm not sure how removing a policy that "poor" employees can't take advantage of hurts them. The claim is that employees who can't afford to defer earnings are in effect denied access to the perk - it is therefore a regressive perk that widens the gap between those at the top end and those at the bottom end, regardless of how it shapes the overall incentive structure.

It definitely serves a legitimate business purpose, but the employees who can't afford to participate are relatively worse off. Taking away the perk removes one source of imbalance, at a slight cost to the people who could afford to take advantage of it. But like you say, "rich" employees have many other investment options.