Disclosure- I work for the government, & I'm here to help.
One of the reasons why big corporate agriculture can determine what you eat is that they are in cahoots with the government that makes laws and regulates that best suits agribusiness. The legal word "organic" has been co-opted and taken away from the hippies who supported the movement and now Cargill owns it and the farmer at the farmer's market can't claim it because it requires approval by the Ag bureaucrat (more trouble than it's worth) who doesn't have the spirit of organic in his/her heart.
Government is a lot of things. Good things, bad things, mundane things, and things we don't even think about. Your tax dollars feed single mothers, undermine democratically elected governments, save stranded boaters, blow up innocent civilians, kill inmates, seizes property, floods the market with cheap corn with subsidies, raids banks, encourages home ownership, builds roads, builds prisons, props up 3rd world strongmen, keeps up National Parks, and a whole slew of stuff.