Investments in infrastructure is investing in huge net benefits for all members of society and the economy in the broadest sense possible. That's why it's been an unparalleled success all over the world to invest in roads for motorized vehicles and invest in electrification. Getting energy and goods to where they need to be as fast as possible is beneficial to all, no matter how you structure your government or economy.
It's not really a benefit to all the ecosystems destroyed by suburban sprawl, or all the people affected by the externalized costs of that economic activity. Unrestricted growth may not be so great of an idea in the long term.
Roads are not only for commuting.