I think if our desires were shifted to improve the world around us, and we were empowered to do so, we would be just as motivated as working to pay bills.
I've heard that marketing is 99% of the expense and effort of a product. Not to mention all the effort expended just to run the financial markets. As well as greed related environmental and humanitarian issues. Corruption in politics. Income disparity and poverty. Money as a system of resource distribution is ripe for overhaul.
Of course there's faults. You'd need to have massive infrastructure in place using capitalism to kick start it. If the entire global economy changed we'd also lose our third world labor market. Which would increase scarcity of resources during the transition period.
Segments of the population could abuse resources. This would ultimately lead back to capitalism as people seek to benefit from their control over these resources. Without a central power certain individuals will attempt to corrupt the system and seize power for themselves.
Thus the system is dependent upon having the majority of the population follow a certain code of honor in order to prevent any community from gaining too much power.
I've had people tell me no one would work, but the truth is that less than 20% of the population can easily support the other 80. That's assuming that people only work for money/survival now which is true only for a segment of the population.
I think the number of people working would actually increase once cultural norms were established due to the ease of access to materials and education.
It's basically my own pet theory with all the benefits of capitalism, democracy, socialism, and dictatorships. It's a pipe dream but I keep working out the kinks.