Imagine if the US hadn't gone in and come up with 'voucher privatization' which essentially created the oligarchs (and which in my mind seems to have been designed so that investment groups could take over but the mechanism got co-opted by the oligarchs).
That happened in all other countries too. Ukraine had oligarchs, Chezchia and Romania have them. Its just russian oligarchs got hold on infinite money glitch which is oil production and the country overcorrected by going full dictatorship