It’s a pithy conjecture, but I’m unconvinced. Technological progress like this is almost always made possible through middle and upper class investment in what

It’s a pithy conjecture, but I’m unconvinced. Technological progress like this is almost always made possible through middle and upper class investment in what start as luxury products. Capitalism drives the innovation cycle which brings scale and efficiency. This is how complex and innovative products become mainstream and affordable. The opposite of poor people dying in heat waves, solar reduces peak stress on the grid making it more resilient and driving down costs.