Capitalism
Capitalism is great. We've all bought a lot of cool stuff thanks to capitalism. Only naïve, ahistorical ideologues want to get rid of capitalism completely.
But due to perverse incentives and short-sighted economic benchmarks like GDP, capitalism does not always march in the direction of more happiness and well-being for society.
The ideal economic system combines a free market economy for industry and commerce with socialist institutions where the free market incentives break down.