Businesses compete in a free enterprise system because these systems exist in a capitalist environment, wherein the company with the "best idea" or product makes the sale and thus a profit--thus fostering competition.
I am not sure what the others thought about it (for example Kahlo and Rivera were communists, so they likely believed it too!)
but a very good answer is <span>B. David Alfaro Siqueiros, since he was very opened about this view, stating it many times. </span>
