Does anyone actually make the conscious decision to avoid curing diseases because of its limited profitability?
Another part of the problem is that the cost of getting drugs approved is ridiculously high.
It's like saying a human doesn't need to eat. Sure, sometimes healthy people go without food to achieve a goal, and a few rare people sacrifice themselves for the common good. But these people are exceptions to the rule.
It might more profitable to find a cure, but often business is blinded by short term rather than the long game.
If you know of anything to the contrary I would be very interested to hear it!
[1] http://www.nytimes.com/roomfordebate/2015/04/16/what-are-cor...