Being profitable is way more than a goal... at least a realistic one (in my view). It's a requirement! (beware that I am not saying getting rich...ok?) Without profits, companies can't grow or compete against others for better products. So essentially if you want to build business you need necessarily to think about profits/losses and how far to go on each side to operate. Also... if those objectives fail, to define clearly when to trigger the "quit".

PS.: Not sure where in my text I said or meant I had a business/project about agriculture... but ok. I was only referring that there is stuff from "others" out there. If you google it, you will find it I am sure.