It's more about allowing vestiges of the current system to exist to ease the transfer to a more equitable system. When systems are ended abruptly, it tends to have unforseen consequences. We need to treat society as the living construct that it is. It's very ill right now, so we put it on life support by infusing some socialism, let it stabilize, then add more socialism until we have a system that is truly egalitarian.

I don't think there's an inherent problem with people having a (reasonably) large amount of wealth. We just need to make it so having that wealth doesn't harm anyone else, or deter anyone else from gaining wealth. In other words, let money obsessed people have some money, just make it an amount that every human could achieve, if they wanted to, and make it kind of pointless by making sure every living being has the best quality of life possible, whether they pursue wealth or not. Like the Scandinavian model, we need a system that steers society towards altruism, community, and egalitarianism.