designing for needs

If i decided to design for needs not wants, i would like to help design for charities and auctions that supported raising money for the people. i would like to be designing products that help out the people as a whole. not just individual companies wanting to design something to help support their own desires. right now i my projects that i am designing is simple and helping out the people as a whole with healthy food ideas, people need to eat more healthy food than junk food, yes i understand junk food is delicious but its not natural for the human body to digest so much of it. if i was able to focus on designing projects just for needs i would definitely focus on the greater health of people.