Making a lightbulb that lasts forever is a terrible business decision because you’ll sell less lightbulbs.

If you're referring to the Phoebus Cartel, they had legitimate reasons for limiting lightbulb life. https://www.youtube.com/watch?v=zb7Bs98KmnY

TLDW: While they undoubtedly made more money because of their actions, shorter life (incandescent) bulbs shine brighter, and with a "better" colour mix than longer life ones.