This would stop the currently exponential pace of growth from outpacing what society, and regulation, can adapt to. Thus avoiding the inevitable crash that will happen when we lose control of the exponentially accelerating train of technology, and it flies off the rails.
Taxes are one mechanism, but they don’t work if you let corporations get too big/powerful. Then you get regulatory capture, no matter how many anti corruption measures you bake in
Capitalism needs constant pruning to incentivize competition and align companies with the common good… And even that never seems to last very long