Want a house? Have very profitable company get into real estate and buy a building/housing development/etc... and use some for corporate execs as R&D for future projects. Want a luxury vacation? Have company pay for trips or heck buy a boat/plane so the company can make it an executive retreat.
Income taxes shouldn’t exist in my opinion. The government can already tax consumption. Why do they need to bilk citizens out of both ends?
To pay for war. That is always the answer in the USA.