It’s not even really cheaper. Especially for Microsoft who is actually footing the bill to run all the data centers.

But, the potential benefit lies in the fact that it’s a potential labor substitute that can’t unionize, can be rapidly switched between different skill sets, won’t quit, won’t ask for raises, and won’t protest when you ask it to participate in DOD contracts. The labor that goes in to making it work is constant, uniform, alienated from the actual outputs of the system, and easily replaced if they start causing problems.

Want more capacity at the company? Build another data center. Need to pivot company priories to the latest fad? Just reduce token allocation form one department to another, no need to fire a bunch of people and wade through that legal mess, then wade through the mire of hiring a bunch of new people from a limited talent pool. Not using all the data center capacity? rent out the remainder to other companies.

It reduces the complex and intricate system of a company to a simple resource allocation that can be wielded at will by company leadership.