Not really. We're talking about economic growth not equity. The argument that widespread private investment is better for growth than widespread hoarding is better established than the argument that government spending is better for growth than hoarding. Even with regard to equity or fairness, government spending isn't always better as more government creates the opportunity for more government capture.
There are other arguments for directly taxing wealth, but the one I listed isn't one in my opinion.
There are other arguments for directly taxing wealth, but the one I listed isn't one in my opinion.