Follow the money trail. Why would a corporation manufacture something that has less profit margin? Their only reason for existence is the bottom line...they have no allegiance to humanity, country, morals, or ethics. Only the bottom line matters. Doesn't require a conspiracy...just follow the money.

Wasn't it J.P. Morgan who told Nikola Tesla (regarding his free energy scheme), "My dear Tesla, how will I charge for it?"

(And don't bust my chops...I am not saying the idea would have worked; the point is the attitude of the wealthy corporate executive to the very notion.)