Your fingers don't breathe, they simply type. But if you are desiring to convince me to tip people who earn a living wage, then yes, it would be a waste of your time. If you are willing to part with your money and give it away to others, then so be it. I prefer to keep the money I earn. Wait staff being the exception, as mentioned above.

You are probably one of those people who errantly think they can tip and "get their money back" by claiming it on their taxes.