Ask HN: Why not target the Russian oligarchs?

If hackers or the international community want to really put the pressure on Russia, it seems they should pressure the people that stand to make the most money from this war/ Putins reign: His backers and cronys. Sanctions normally just hurt the poorer people of a country. The rich and the people in power are usually effected last. Why isn't this the stategy?

https://en.m.wikipedia.org/wiki/Russian_oligarch

Look at the Putin section.