Ghosts and demons are in the destruction business: they aim to create havoc and destroy the world as we know it. Ironically, they will eventually succeed in their endeavors which will result in their own destruction.
Cultivators of Mahayana radiate a positive energy and can emit a bright light of wisdom that will chase away the forces of darkness. Therefore, the Triple Jewel should be revered and protected because they are doing a lot more good than they would ever want to take credit for. This is how you can become Buddhas: by giving to and helping others and not wishing to take credit for your good deeds.
If you really understand this, you would never think that left home people are irresponsible because they shirk their responsibilities to society. Nothing could be further from the truth.