It also has functionally infinite land, weak neighbours, incredible energy resources, isolation from any other world power, a (relatively) egalitarian culture, and the single biggest patch of good, arable land on the planet.
No shit workers get paid lots in such a productive piece of territory.
The big effect of all these things is to make stuff cheaper and easier in the US. Cheaper land, cheaper energy, cheaper food. It means America can generate more capital with less inputs than anywhere else. That capital is then available to other industries, like tech.
Canada has lots of land, although it's generally much colder, less fertile, and just worse. They have oil, only it's thousands of miles away from the economic centres. They have arable land, also thousands of miles away from population centres (also far inland). And they border a hyperpower who could destroy them in a glance.
No, Canada doesn't have those things, namely arable land. Much of Canadian land is wasteland, too cold for much agricultural use. Its economy isn't that large either (much less population), and its currency isn't a major currency worldwide.
It also has functionally infinite land, weak neighbours, incredible energy resources, isolation from any other world power, a (relatively) egalitarian culture, and the single biggest patch of good, arable land on the planet.
No shit workers get paid lots in such a productive piece of territory.