We have a tendency to treasure the things we work for. As an experiment, you can try this and see if it's true for you. Pick something you don't care about, then work to preserve it. You may find yourself caring about it. I have found this to be the case for me with house flies and with computer game monsters.
"Where your treasure is, there your heart will be also". It is when we are doing the work to secure our treasures, or when we spend time in the presence of our treasures, that we live real life.