I like the way you ended the post with these questions, but first, let me correct you; it is not all the money you spent that is lost, let that be clear.

Now, whether you spent it on frivolities or on something worth it, you have spent it, and it can be spent slowly or very fast, regardless, it all depends on the value you spent it on.

I can only advise people to be accountable when spending. Don't waste resources. And this spending of a thing depends on the way you earn too, your financial status. If you earn well, you might spend and not feel, but if do not earn well, whether you spend it fast or slow, you will feel it.