Sweden did have an east India company. The Chalmers university was funded by a English man called Chalmers who made his fortune in the East India company.
As with mass migration to the US, British colonization did enrich much of western/Northern Europe and opened up a world of opportunities.
Being proficient in English was seen as being among the elite in the colonial era.
This results in a premium being placed on complicated and convoluted phrases. Like in legal documents. This seems to be prevalent in the former British colonies in Africa too.
It is not very hard, it can go to a museum and can go around the country. After all in a democracy the people are the kings.
Personally I would not want it back, because it is just the tip of the iceberg. The church of England (now csi and cni) hold on to 1000s of acres of colonial land across the country.
Greeks were at the fringes of the ancient civilization. The Romans and the Germans were considered barbarians in contrast.
India on the other hand was the center of the ancient world, both by sea trade as well as its huge population.
The Chinese as well as the SE Asians sent their best scholars as well as royalty to study in India.
It is very much more likely that the Greeks themselves benefited from their contact with India, as did many other ancient civilizations of that time.