[derefr]

In the same way that some companies have negative externalities like pollution, you could think of a data-centre more as having a positive externality of job creation.

Data-centers don't do many things themselves, using manual labor; instead, they're just large machines that consume purified resources (power, live fiber, provisioned equipment) and turn it into APIs. But purifying those resources for the DC's consumption does require people—and DCs need a lot of each of the resources they consume. For every N data-centres that get built in a state, that state probably employs a good few more power-plant workers and linemen, for just one effect.

[Spooky23]

Not really. That infrastructure scales up. You pick up a few construction jobs and maybe get some reusable utility infrastructure. That's it.

A lot of the other roles are field service type things that don't use local workers.

That's not a bad thing, just not the end-all, be-all. if the building of data centers or similar facilities are a trend, you will build up good local capability to build these facilities and may start winning other business.