...indeed created some marvellous pieces of technology: T34 (best tank of early WW2), Sputnik (first satellite), the An224 super-cargo aircraft, the excellent Mig29 and Su37 fighter planes.
The Mig29 is superior to America's main fighter, the F15 in terms of aerodynamics and vector-thrust missiles. The Su37 even more so.
BUT, we know that vastly superior capitalist electronics won the cold war and it manifests itself in excellent RADAR, ELINT and general intelligence capabilites that can acquire and shoot down a Mig29 before it can use its superior aerodynamics against the ageing F15. Also captialism has enough oil and spare parts to train pilots to highest professional levels.
I think Open Source is very similar - Linux, a lot of Unix tools like bash are simply vastly better than much of that commercial stuff - in some aspects. System admins love the "free" bash command line and it gives them great power.
BUT, the majority of users is non-technical, including those making the buying decision. They care about economics of using a computer by 95% of their workforce, and that's the non-techies. So windows, flash and ms office might be ugly under the hood, but that simply does not matter. Ergonomics matters, and in this aspect, commercial stuff is still vastly better than almost all open source products.
Actually, open source systems are most often a knock-off of commercial products, with a huge economics problem, like all kinds of socialism have. RedHat is one of the very small number of companies which make real money with open source, maybe the only one.