Actually, Henry Ford's invention was the assembly line to make cars affordable. He did not invent the automobile and he did try to sue over 20 companies when they used the assembly line idea.
Enough history, the question you may want to ask is, if you invented something, came up with a revolutionary idea, would you be pissed off if another company came along and made money off it, without giving you anything and took business away from you. I know I would be.
Ideas and designs are something that is protected by law. If you want to enable people to steal other's ideas, just because they can give it to you cheaper and not necessarly better, then move to another country where that is common practice. Personnaly, I want my ideas protected.