Hoards of cash in drawers and bags?
Open laptops with logged in crypto accounts?
Maybe they only showed the few dummies on the team that didn't follow protocol, but all it takes is one idiot to ruin the whole "teamwork" vibe...
They believed that as long as they did not target Russia (or CIS countries), that the Russians would not crack down.
What stops most hackers from orchestrating massive attacks, is the threat of arrest and prison.
For those most highly skilled IT folks, the income difference between a legitimate cybersecurity job and ransomeware engineer, is not enough to justify the risk.