> Stadiums are a clear loss for the local economy, but isn't it totally different from a company like this with many high payed employees paying income tax, as well as demand for local prototyping / consulting services?

Yes, but from my understanding, the scenario you outlined does not exist (net benefit from tax incentives).

Example: Nevada has no income tax. The only benefits it'll see from the Tesla Gigafactory is any sales tax from the purchasing of manufacturing equipment for the location, and the trickle down from the economic activity from the workers who relocate to work there.

I only used Tesla as an example because it was fresh in my mind, and you asked about income tax, which Nevada doesn't have.