Money isn't the most important thing in life, but it's reasonably close to oxygen on the 'gotta have it' scale.
Success is the doing, not the getting; in the trying, not the triumph. Success is a personal standard, reaching for the highest that is in us, becoming all that we can be. If we do our best, we are a success.
I've always taught that a poor economy is the best opportunity for salespeople because the naysayers and grumblers have already given up, leaving more territory, more opportunities to be successful than in a good economy when virtually all salespeople are out there, giving it their best.