I'm a musician and I can tell you from experience that I sound a lot better on a Steinway concert grand than on a cheap Casio keyboard. So, more money? I guess the keyboard is cheaper, but when the musician is happy the music is better.
better tools certainly make for a better product, no question. I think this stretches the analogy a little bit though, if we're comparing java and haskell I don't think we can compare a steinway and a casio, maybe a steinway and some off brand.