There's a disconnect here. I'm obviously not seeing your point because...

Renting someone something when YOU set the rent is ALWAYS more profitable than selling something to someone outright.

When you start curing, you start running out of customers...quick. When you DON'T cure, and you treat the symptoms, you have a customer for "life".

If I sell you a house I get a profit. If I rent you the house, I get MORE profit and when you "leave", someone else moves in right away. I start collecting rent again.

I just don't see how an upfront profit beats a long term profit. Cancer occurrences are increasing, meaning more "rent"...curing them would make them go down and after a few years, you'd have NO business left.

I am thinking...