Comment by Nifty3929

For the factory - yes, your wages as a worker building the factory would be treated as a capital expense to be amortized, at least from the perspective of the factory owner. But in the usual case where the owner is hiring an outside contractor to build the factory, then from the perspective of the contractor, your wages would not be a capital expense.

The company that pays for the factory would basically just pay $1B of capex for a factory. The contractor doesn't get the factory - they get income. And your wages from them are just an operating expense. The contractor is not making a capital investment - they are just doing a job for money.