Let’s suppose for a moment that employees are interchangeable resources without discernible differences and companies are profit maximizing entities. How is it possible under such assumptions that 2-5-10x salaries exist when 1x replacements are readily available elsewhere? To argue that people are only paid what their replacement would cost also requires an explanation why a garden variety remote employee (or a team of four experienced veterans) is not a replacement for locally grown organic talent? So far there is no convincing explanation to back that up. *
Because companies don't always go for the cheapest labor. There are other factors...