Unproductive work is a financial drain, wouldn't it help investments to cut it? (We do have the problem of defining what's productive, though)... Economic calculation problem.
No. Those "unproductive" workers spend their money which ends up driving labor growth because of the services and goods they pay for. If every company got rid of the "unproductive" workers and all the inefficiency, you'd have wide swaths of really unproductive unemployed who are unable to contribute to the economy in any way, as well as all the "saved" money going towards the wealthy.
