or just a really sturdy fence, and guard posts with guns. That's cheaper than space, and infinitely easier too.
https://www.youtube.com/watch?v=R3m4z9CoXEY
People are how and why things work at all. Wealth hoarders obsessively try to eliminate "the human element" because people are also going to turn on you when you mistreat them long enough. Given that we're already talking about space-based data centers, economic efficiency has long gone out the window as a justification for the "need" to remove humans from the equation.
The problem is that try as they might, you can't have it both ways: society requires people cooperating in order to maintain the systems they take for granted but at the same time they do everything to disrupt cooperation and to isolate themselves from people because people have every reason to hate their guts.
It's the ultimate "anarcho-capitalist" folly: in order to enforce a vastly disproportionate property claim (i.e. significantly more than your "fair share" by many orders of magnitude) you need to be able to maintain a vastly disproportionate threat of violence (i.e. significantly more than you could physically deal out yourself by many orders of magnitude) but at this kind of scale the only way to do so requires you to rely on other people (because at some point even carrying around a nuclear warhead with a dead man switch would no longer be a sufficient deterrent) - states exist to solve exactly this problem (among other things) but they still rely on people cooperating. Even "transhumanism" doesn't solve the problem unless you go the Peter Thiel route and see the end of all human life as a possibly necessary part of the process.
EDIT: To pivot back on-topic: guys with guns may not be an acceptable part of the solution for some companies but they can very much be part of the problem. And considering what Iran and the Houthis (or Ukraine for that matter) have been demonstrating, sometimes even guys with very basic explosives and consumer grade electronics can be enough.