I definitely think that most people who describe themselves that way probably subscribe to the idea that unhealthy working hours are the only way to be innovative.

But this isn't so much evidence that your claim about the OPs employees is true as an attempted definition of "relentless innovators and world changers".

We could equally baselessly argue relentless innovators who are trying to find the next big thing would prefer a sane working environment so that they can have enough of a life to actually pursue their passion.