"At the time it was granted, the award was potentially worth as much as $82 million overall to the company’s top five executives. But it would be worthless if the company—whose star product is the EpiPen—fails to achieve at least 90% of its 2018 earnings target."
And let's not forget that capitalism is people, not faceless, nameless machinery. Five people promised $82m between them had their greed overshadow anything else. This was spurred on by the greed of the board that would do anything to aggressively increase profits - but put the "how" on someone else for plausible deniability.
Greed is the part of capitalism that regulation stands in the way of. Too aggressively rid the system of regulation and greed will consume everything.