I take the opposite stance. I think the moment we are born we become a burden on everything around us.
We change oxygen into CO2, consume the life of others (plants and animals), excrete very excessive levels of nitrogen (enough to kill fish in rivers by accident), consume huge amounts of energy which produces even more CO2, etc.. Furthermore, modern agricultural relies heavily on synthesized fertilizers which contribute to a nitrogen cascade that has no parallel in nature.
Much of this we do haphazardly and without any thought to how it will impact other species or future generations. Fortunately, some people express gratitude for their food and shelter on a daily basis and strive not to be wasteful, but the mainstream ideal is more consumption and, incredibly, more leisure. However, the sheer size of the human population and our massive consumption puts measurable strain on the environs we inhabit.
The question I am forced to ask myself is: What am I doing that makes me worth all of this?
Said another way. Everyday I breathe, eat, and shit. What am I doing with that respiration, consumption, and pollution? Am I improving the world in some way? Or just wasting resources?
The incredible thing about this very disheartening realization (I first discovered it in myself at the age of 24) is that I can do something that makes my life worthwhile. The recognition of how much I owe to everything around me motivates me to do my best and to maintain kindness and curiosity.
Ask not what the world owes you. Ask what you owe to the world.