eh, it's best not to parse humanity into wealth groups and think of one or the other as doing something in collective, like helping or harming the economy. Spending / consuming isn't the only function of an economy; saving, investing, creating new production, etc. also play big roles.

What we really need is renewed growth, agnostic of any demographic segment:
https://johnhcochrane.blogspot.com/2015/10/economic-growth.html