We're still reaping benefits of the Apollo project almost half a century later, and it cost less than what governments have spent pushing advances in clean energy that are already paying off in real economic terms. There is quite a bit of money flowing around the world, and it tends to produce more when spent. There's no shortage of money.

> We're still reaping benefits of the Apollo project almost half a century later,

Care to elaborate about the benefits of the Apollo project?

NASA has helpfully provided pages on this exact subject under spinoff.nasa.gov.

For Apollo in particular: https://spinoff.nasa.gov/flyers/apollo.htm

Good search query for finding more detailed analyses (not in a snarky LMGTFY way, there's just so much to list either as a direct benefit or as something made possible by those early innovations): apollo spin off technologies