IE6 was the browser "most of the world used" too. But really, surely, there was absolutely nothing done well in it. The only reason it was the most used browser was monopoly abuse. And while we can discuss the exact terminology of "a monopoly" and whether the Ie6 hegemony fit in there theoretically, that it came with the most used OS, really was the only reason it was popular.

With Chrome it is different. But at least a large part of its popularity comes from abused monopolies enforcing this software on people. Less than IE6 i'd say, but still a large part.