Bulk purchasing power does not mean anything when the people you buy from in all your different locations are not the same. Not even for gasoline, which is the

Bulk purchasing power does not mean anything when the people you buy from in all your different locations are not the same. Not even for gasoline, which is the simplest commodity of the bunch, will you find the same companies selling to you in the US as in Europe as in the Middle East as in China as in India. Can anyone point out a single thing that Uber buys locally that they can get from the same vendor in more than a handful of countries?