The head of Ukrainian intelligence had said before that Russians only understand fear, in response to bombing civilian targets and raiding incursions in Belgorod. And some of the units in Kursk are under the direct control of Ukrainian intelligence.
And there's a video of a Ukrainian POW, who surrendered in Vovchansk, stating that he was recruited from prison into the Ukrainian army, and the recruiters promised them they would be used to attack Russia, and then let loose to rape and pillage as much as they wanted as bonus payment.
The way the western economy is tied together through stock markets though means that one company or hedge fund failing because one manufacturer goes down, will cause a domino effect (either due to panic or interconnected stocks). That's the fear anyway. We've seen exactly that when Intel's stock went down, which was only mitigated by the Fed printing money and silently propping up the stock market.