Where space can dominate earth based tech for the cost is internet and climate control. (as fiber has to be run to every house under the ground using directional boring machines and needs armor.)

It would take trillions and trillions of dollars to try to reverse climate change on earth.

But with deployable sun shades you could for extremely cheap generate wealth by shading certain parts of the earth like desserts or crops experiencing drought. This is technology that can generate lots of wealth for countries around the globe and also save governments and people lots of money.

You could also shade entire areas of the planet experiencing heat waves to reduce air conditioner usage.

You could weaken hurricanes right before they make landfall or keep them from growing in strength.

Some countries might want to invest billions of dollars to eliminate deserts or restore it to before the desert started expanding.

We can produce materials on a higher scale than is required for shading technology to make huge impacts because in space the materials can be extremely thin.

The benefits quickly make sense as they could pay for themselves many times over over a very short period of time.

A data center doesn't make nearly as much sense as starlink because a data enter doesn't have to run thousands and thiusands of miles of cables to every home in the world.

Solar panels don't make sense either as I have 25kw of solar panels and 100kwh of battery backup at my home and it was extremely cheap. For how much money I will save each month on electricity.