You have spelled out a basic and common economic fallacy. The sole purpose of money is to be spent. A person's rate of saving vs. immediate consumption simply reflects a longer term vs. a shorter term outlook. Instead of splurging on a bunch of electronics today, you're saving up so you can start a new business in five years. Nobody keeps money under their mattress indefinitely or dumps it in a lake.

Now, with that in mind, why on earth should the government try to dictate the 'correct' level of short term vs. long term financial planning? Why should long term planning, which leads to the formation of new businesses and increases society's wealth, be penalized in favor of consumption and debt? Aside from its ugly totalitarian implications (the government should decide for everyone how they use their money), it's completely economically wrongheaded and disproportionately harms the poorest members of society.