अन्नेन धार्यते सर्वं जगदेतच्चराचरम्।
अन्नदः प्राणदो लोके प्राणदः सर्वदो भवेत्।
तस्मादन्नं विशेषेण दातव्यं भूतिमिच्छता।।
This physical world is sustained by food (Food, Water, Air). Those who are food givers in abundance, are actually doing प्राणदान. प्राणदान is most sublime giving. And so, being farmer who grows प्राणयुक्त food or being part of प्राणयुक्त food chain, is a great service to the society and sustenance of the world.
On the other hand, those who are promoting प्राणहर (That which consumes Prana of the food consumer) food (Chemically grown food), food price inflation and food profit, doing farming as a business, selling food, promoting farming as a business – They all are destructor of the world.