Is There a Connection Between Irrational Behavior and Irrationality?

If you had the capacity to produce a 51% attack on Bitcoin, it would be rational to do so. But then if there is this equilibrium, you just sort of said that there is a need, at least at the beginning for some form of irrationality. I'm wondering if there is that connection between like acting maliciously wrong and being irrational. It turns out that there are really only two major strategies for incentives that exist in blockchains.