Absolutely, and that's essentially my reasoning for "being a nice guy" as stated. It's also one of the reasons I'm more "left" leaning politically - I want society to take care of the lesser fortunate people so I don't have to deal with as much poverty (and associated crime) in my surroundings.
"The tortoise lays on its back, its belly baking in the hot sun, beating its legs trying to turn itself over, but it can't. Not without your help. But you're not helping."
Because there's no selfish reason to help.
If I were to rephrase your statements slightly"
"The lion inches towards the hapless innocent doe, just about to pounce, while the doe cowers in fear trying to escape, but it can't. Not without your help. But you're not helping."
"Because there's no selfish reason to help."
Your line of thinking has destroyed our world because it is based on hubris - our collective notion that it is our moral or "human" duty to interfere, to rescue, to meddle, and we sleep well at night thinking that "we have made it right" and have "made a difference". Very often, we are just meddlers, and only sleep well at night because we just ended up fueling our egos with our self-righteous acts.
Why don't we just stop judging everything around us and just try to lead a life in which we are honest and true to ourselves - for a change? I argue the world will be a better place for all of us.