Well put. I think monetary value and impact don't necessarily correlate. One could have an amazing, long-term impact on the world without it being reflected in 'price'.

Reminds me of some of the recent Valve stories, specifically the anecdote about Doom being the most installed piece of software [1].

[1] For those that didn't know this, see the post below and scroll down to 'Valve is different'

http://blogs.valvesoftware.com/abrash/valve-how-i-got-here-w...