Why assume I don't? I use my time very well by my estimation. Plenty would think I'm totally blowing it. Doesn't matter as they will be just as dust as I before long. Time will pass just the same after humanity is dead. We cannot use time. It is doing it's own thing and we are pushed along for the ride no matter what happens.
That's why I stand by my words. We can't use time, thus we can't waste it or use it wisely. We can only pass through it on its terms, never ours.