It will be necessary, as we are approaching a situation with massive technological unemployment, caused by the same techologies which has the potential to liberate us from wage slavery.
In the long run, however,capitalism will have to be replaced by a commons based, post scarcity society, using robotics, A.I , additive manufactoring, etc.
Production for use, not for profit.
Otherwise, society will collapse, and the environment, and we will all be cooked.

We don't need to worry about that, greed and religion will get us all "cooked" long before it comes to that :)