Maxim Litvinov (aka "Max Wallach", aka "Meir Finkelstein"), like Peters, was also married to an Englishwoman: Ivy Low. Her dad was friends with H.G. Wells, her uncle was the historian Sir Sidney Low. I think he was less of an international criminal & just a regular SIS agent.
Before 1917, Litvinov wasn't doing simple agitprop. He was engaged in the most rudimentary military intelligence work: delivery of weapons and explosives, terrorist acts, assassinations. In 1905 Litvinov organized the reception of SS John Grafton, an English ship carrying weapons
for "Finnish" "freedom fighters". It was blown up to prevent the Russian government realizing the English involvement. The yacht Zora sank before reaching the Caucasus. We don't know much about the shipments that DID make it into Russia.
He moves from the Baltics to Paris, where he is appointed head of a firm through which the Brits place orders for military factories in Europe. Litvinov pretends to be an Ecuadorian officer. However, the weapons and bombs do not go to South America, but are smuggled to Russia.
What's happening in Russia? Gangs of heavily armed rebels are killing civilians, police officers, soldiers, priests, government officials. Across Russia, bombs are exploding, houses are set on fire & real street battles are fought in the cities, with machine guns and artillery.