"(2) to stick out with the early investors and only accept further investment provided they honour your agreement (and not try to strong-arm the early investor

"(2) to stick out with the early investors and only accept further investment provided they honour your agreement (and not try to strong-arm the early investor in giving up their rights), even though it's not rational for you (the founder) or your company to do so (however, it's rational for you+early investor)." The rationality of ethics depends on everyone believing they are part of a multi-round game. Hint: even if you think you are playing a single round game, you probably aren't.