The idea that you can represent a government, let alone an entire country or collection of countries, as having a single intent is faulty. I'm sure some individuals are motivated by economic interests, while others are desperate to have a worthy object of their Cold War chauvinistic sentiments, while others dislike Russia because of domestic homophobic and racist policies, while others like the face that the new government of Ukraine flattered their cultures and countries, while others just listened to Russophobic Western media, while others really dislike the idea of one country invading another and being sprayed with bullshit propaganda.

The search for intent and motivation as causal mechanisms in international relations is pretty dangerous.