Disabling the feedback mechanisms isn't a win. When it had the feedback from continuous minor panics the US built an economy capable of taking on the entire word and winning by a massive margin in the 1940s. And I bet there were alternative mechanisms to deal with the "deflationary debt spiral".
Now the US keeps telling itself it is OK while it is increasingly marginalised. There isn't much evidence is it can win a major war or compete economically against more serious Asian efforts. The election of Trump suggests that US citizens don't even feel particularly fat and comfortable in their own economy. At least all the economic indicators say the US is OK though! The money printing is sure to lead to prosperity.