While he was writing poems, America and the EU were building Empires and the wealth divide took off...just saying
1) the European colonial powers were losing their empires,
2) the EU wouldn't exist in any form until several years after he died,
3) USSR (in which he was in command for a good chunk of time) was propelled from a rural provincial power into one of the two global superpowers (who, among other things, was crucial in defeating the Nazi Germany)
4) he had an iron rule in said USSR, and managed to secure half of Europe (and half of what is now EU, including half of Germany) for his extended empire
Plus a lot of murders and political power plays...
So, yeah, he was hardly just someone "writing poems" and losing time...