I think there are several other reasons why hard sciences developed more than soft sciences in former Communist states:
1.You can't really use ideology to fight them. If a researches comes and says that 2 + 2 = 4, even the most fervent apparatchik (Communist party member) would have had a hard time spinning it into 2 + 2 = -1. While in other fields such as sociology or history... things are a bit more malleable.
2. They're practical and quite far removed from anything that might stir up anti-establishment actions.
3. The "1984" factor: if you need highly skilled mathematicians and physicists for your weapons, you really need them. You wouldn't want to issue your army 7.5mm rounds for their 7.62mm rifles because someone was bad at engineering :)
1.You can't really use ideology to fight them. If a researches comes and says that 2 + 2 = 4, even the most fervent apparatchik (Communist party member) would have had a hard time spinning it into 2 + 2 = -1. While in other fields such as sociology or history... things are a bit more malleable.
2. They're practical and quite far removed from anything that might stir up anti-establishment actions.
3. The "1984" factor: if you need highly skilled mathematicians and physicists for your weapons, you really need them. You wouldn't want to issue your army 7.5mm rounds for their 7.62mm rifles because someone was bad at engineering :)