The Mises Institute says that government is worthless:
"There is no such thing as public investment, only public consumption. This conclusion follows immediately once we clearly recognize the distinctive character of government's economic position within a division-of-labor economic system."
Brad DeLong longs for Econ professors that tout the governments ability to enhance economic welfare:
"Instead of carrying around an Austrian model in their heads in which we assume total selfishness, zero transactions costs, and conclude that transfer payments are suspect, they’d be hearing about Possible efficiency gains due to taxes and transfers"
I'll let you decide which argument makes the most sense.