All salary are based on Q7-weapon factory, this makes it really hard for food-producers to hire and earn any money at all.
There is also big difference in price between food raw and weapon raw even it "shouln't", it should be possible to balance this out in some way so its equally profitable to produce food raw.
Example that people can eat more everyday or that each food gives less energy or that the "base energy" is increased. This would make the game a bit faster also which would benefit active players more. If the "base energy" is increased people would use more food without altering "balance" when people buy energy bars.
There is probably many more ways to make food & food raw equal as weapon that more people can come with suggestions.