Is that always true? Melon Usk (say) wants to make cars, but he can’t pay for the factory himself, so he forms a company, sells shares in it, and uses the proc

Is that always true? Melon Usk (say) wants to make cars, but he can’t pay for the factory himself, so he forms a company, sells shares in it, and uses the proceeds to build a factory. Now he and his shareholders can make cars, so the shares are worth more. Who lost money?