The story is relevant these days probably even more than it was 100 years ago, when it was written. Most people say that they want to get something first and only then they will do their best. I don't believe them. I saw many people, who get what they've asked for, but never do their best and probably never will. I believe that if you do your best, you will always be rewarded and I've proved that many times in my life.
One of my principles in life is always to do my best whatever I do, and if I don't want or don't feel like doing my best, then I just quit that activity as fast as I can and start something where I can do my best. By reading this short story I realized that this principle was always very important despite the century people are living in. I really recommend you to read this book, not because you will be able to understand why so many people can't be trusted on tasks, but to change your own attitude and get things done immediately!
Can you deliver a message to Garcia? Or will you just start questioning: why? who? where? ..?