The fact that you did not pay for it does not make it free. Someone had to produce it and those products were not free. They were paid for by someone. My guess is that you were the beneficiary of other peoples generosity whether they knew it or not.
Maybe the company that gave it was willing to part with a portion of their profits in that manner. I also wonder if their employees knew that the efforts of their sweat was begin given to someone else.
Perhaps they would have liked to have received a bonus for their efforts at making the company profitable enough for you to receive your FREE building.
No, you are wrong, it was not FREE someone gave up something for you, in this case voluntarily and not by having it siezed from them.
THERE IS NO FREE LUNCH EVER !!
What? LOL! We got a free building given to us, freely, by the owner of the building. But you're telling me it wasn't.
I want whatever you're drinking.