Your financial circumstances playing around you the moment you receive your paycheck is what will determine if you will spend it fast or slow. It's when you lavish it that it doesn't make any sense because people who lavish their money spends it in a fast way.

The rich has the flexibility to spend money in a fast way without it affecting them that much because they have other means of income but if a poor man spends his money fast, he will be broke within a few days. Financial management matters a lot.