Just gunna point a few things out.
Firstly, we conquered Gibraltar from the Spanish at the height of their success, Scotland, Ireland, Cyprus and Malta, but we'll ignore those. We also held lands in France for hundreds of years. Let's ignore those too.
Secondly, was India not the richest country in the world when the UK took it over?
We created a new country in America and Canada and made the USA one of the bases to be the richest in the world. Of course HK and Singapore were taken from tribesman, or rather, taken from a very powerful Brunei sultan and the Chinese Manchu empire.
Also, South Africa was won fighting European powers, as was Canada. But we'll pass those up, along with all the Caribbean territories.
You guys found an empty land in Greenland and made....nothing.
We found a fairly empty space in Canada and USA and made 2 of the top 10 biggest economics in the world.