Time is money.

Money is the root of all evil.

The root of all evil is the devil.

It follows that time is the devil.

Time should not be wasted.

Using replacement from above, the devil should not be wasted.

If it is true that the devil should not be wasted, and we accept that what's bad for the devil is good for humankind, then we can infer that being wasted is good for humankind.