While I do agree that having money put to use is preferable to not, the argument that any spending is therefore good seems somewhat absurdist. We wouldn’t apply that logic to government spending, for example - the government gold-plating Air Force One produces different effects than the government building water sanitation, even though they both result in economic activity. Accordingly, some spending produces more social good than others. The argument that critics of spending like this isn’t that it would be better for the money to sit in financial instruments, it’s that the money would be better off partially captured via taxes and more directly allocated to social good.