> What does that say about our societies that we have embedded the profit motive in (most) organisations?

It says that capital management is non-trivial and full of risk that needs to be proportionally rewarded with profit to justify the outlay.

Even non-profits have to grow revenue, because organizations require resources. But non-profits are hampered by the fact that they can't reward people for taking risks on them. A for profit organization can seek outside capital and reward risk. A non-profit can only seek donations or charge for services.

Ultimately, society benefits a great deal from it.