The "need motive" is not what you think it is. There is not an imperitive to endlessly expand. I am not treating scientific planning like it can bypass thermodynamics, that is a strawman. Profit doesn't just change distribution, it changes production, because profit needs more sales. This creates new demand that then is fulfilled, this is the basics of why socialist ecology is necessary.
Again, the "need motive" does not have the same endless feedback loop that the profit motive does.