Morals may be objective or subjective, but throughout my life I have never hurt anyone even though I had many opportunities in which I could steal, deceive, lie, scam. I am really pretty proud that I do beautiful things for nothing and I don't want anything in return.
#We are good without God
Realistic self-awareness can be difficult for some people. It's wise for everyone to check-in with mental health & social psychologists, occasionally. Empathy has little value, from a position of a distorted self-concept.
It's safer to presume that one has inadvertently hurt others, and use the responses of others to try to ascertain who & how. If one has an awareness of having had a choice to hurt someone, and not having done so; asking why, can be illuminating, too. For them? Or, for self preservation from consequences, or for self-satisfaction ... in holding-on to that power?
I have really not done those things either but I have hurt many a people in my days. Mostly not on purpose but unintentionally. But all that said, there are times when one has to speak what one feels no matter how 'hurt' someone gets. I have said some hurtful things about the Orange Garbage but am not one bit sorry.
If you have never hurt anyone in your life, you have not lived life to the fullest. I have hurt people intentionally--and felt remorse for even small issues--but I have hurt people unintentionally and did not realize it until they told me or gained a bit of wisdom and realized that I could have been kinder. Those realizations have made me a better person.
The Christian Scriptures have a verse that states, ""And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on the street corners to be seen by others" Matthew 6:5. While the issue of prayer does not come into play here, why broadcast your altruism? It seems self-serving and a baiting for compliments.
You might also want to read what psychology says about "pure altruism" that is performed for "no reason."
Keep patting yourself on the back, but be careful about dislocating your arm.