That’s the difference between you and a company. You need a building to live. A company needs its employee to work in order to live.
The building is an expense that was budgeted. When it’s bought or leased, it’s paid. The money is already lost. What’s left is the money you win. If the employee are already there, you still earn the money.
What the company doesn’t pay is the energy, food, cleaning etc. Actually it’s now the employee who are paying that.
For a company, the building is more comparable to a printer for you. Once you bought the printer, the money is lost. If you stop using it, you don’t lose more money.
A family is not a company. Nor is a government by the way. These comparison are wrong but also usually dangerous, because they hint at extremely bad interpretations and decisions.