So you would never invest in a founder who does the rational thing? Believing in your own company doesn't preclude one from believing in other companies as well

So you would never invest in a founder who does the rational thing? Believing in your own company doesn't preclude one from believing in other companies as well. Say the founder estimates their startup has an 80% chance of succeeding; they pool 5% of their equity given the non-linearity of the utility of money (the additional 5% upside is negligible in a large exit). You would immediately dismiss that founder entirely because of this choice?