That requires that you have board control. If investors control the board and you tell them to fuck right off, you will quickly find yourself out of a job.
Board control isn't the problem at seed. You'll usually have board control. But if you need another round of funding, the investors control the company.
If your seed investors are "name brand", and they pass and say, "Ah yes, they're very nice guys. Wonderful conscience, very punctual. Unfortunately I can't follow on, my capital's already allocated. I wish them luck.", you'd better have a plan for profitability.
If your seed investors are "name brand", and they pass and say, "Ah yes, they're very nice guys. Wonderful conscience, very punctual. Unfortunately I can't follow on, my capital's already allocated. I wish them luck.", you'd better have a plan for profitability.