It seems that the average employee doesn't currently benefit from completing their job more efficiently; i.e., they have no interest in AI.
To accelerate mass AI adoption in workplaces, it may be necessary to expose the average worker to the risks and rewards of business ownership. However, it might be the case that the average worker simply doesn't want that risk.
If there's no risk, there can't be a reward. So I can't see a way AI adoption could be sped up.