Should manufacturers make things, then make people believe that they need it, or should industry hang around waiting for someone to ask for an item to be made. Take aviation, Douglas built the DC-3, and got the airlines to buy it, starting with TWA, meanwhile in the UK the airlines produced their ideas, and industry built them, very small numbers, and no sales to other airlines, such aircraft as the Handley Page H.P. 42, 8 built, Armstrong Whitworth A.W. 15 Atlanta, 8 built, and similar things happened after the war with the likes of the VC-10, and Trident, all left behind by the Boeing 707, 737, and 747.
With the first order for the DC-2 with TWA Douglas lost 1/4 of a million $ because the quoted price was on the smaller DC-1, but TWA came back with modifications that added up to a new design, but Douglas knew it would win in the long run.
Sometimes caution is best overlooked in industry, sometimes you have to innovate, perhaps if Sinclare (spelling?) had been around to invent his electric car now, he might have got it up and running.
Ian S C