Why doesn't beef cost 7 times as much as grains?

If it takes 7 times as much grain to create the same amount of beef, so why isn't beef 7 times as expensive as grain? Because the vast majority of farming subsidies go to meat and dairy farmers. In other words we are forced to pay for the mistreatment of animals whether we can conscience it or not. Fruits an vegetables have increased in price faster that other products and they are the building blocks of health, while confectionaries have gone down in price in real terms and they destroy the quality of life. If we could end these subsidies the whole society would be healthier, we would also save NHS money on preventable illnesses that could be allocated to those who still needed it. What is more, Western agricultural subsidies for domestic farmers have been a horrendous catastophe for the poor in the developing world, because excess produce is dumped there putting their own producers out of a livelihood and building their own economy. Crazy world we live in, where money is shifted from the people to self-interest groups at the point of a gun, despite the harm it does to the whole of society.