The entire point of Bitcoin is to do more with less. So even if people are encouraged to save more than they spend this does not mean economic throughput drops. It means people are able to afford to do more with less. The rest is just an abundant safety net. In this way Bitcoin generates abundance.

If my lifestyle cost me $50,000 a year but my net worth in Bitcoin increases so many times the amount the cost of my lifestyle does not decrease and neither does my economic throughput. The only thing that decreases is the amount of the tool that I need to transfer value.