Spending more could be done by converting all those coal plants Germany has into renewables, or building better mass transit, or doing R&D for its industry, or

Spending more could be done by converting all those coal plants Germany has into renewables, or building better mass transit, or doing R&D for its industry, or providing better benefits for parents to raise its abnormally low birth rate, etc. Having money to spend is a good problem to have. More generally speaking, Germany has excess saving and insufficient spending which creates problems for the other members of the Eurozone. Excess deficits are bad, but excess surpluses are also not good.