The fact that you thought I was getting an ego boost from tipping is the reason tipping exist, giving people an illusion of power/status.
This kind of thinking is precisely what's wrong with tipping in the first place.
Let's break out of our echo chamber a bit. In the US, tipping isn't "paying more than required," it's basic manners. You can argue until you're blue in the face about how businesses are to blame, but the vast majority of society, who have no big beef with tipping culture, will find you cheap rather than discerning.
Canada minimum wage: https://www.labour.gov.on.ca/english/es/pubs/guide/minwage.p...
Liquor Servers Minimum Wage $9.90/hour
Edit: here are some supporting links.
15-20% suggested with 20%+ recognized as a minority opinion and for extra good service: http://www.cnn.com/2015/03/02/travel/experts-guide-to-tippin...
The highest tipping state averages 17% and the lowest averages 15%: https://qz.com/189458/the-united-states-of-tipping/
You can definitely get away with 15% at places where you don't regularly eat. I do 20% at regular places where the waiter will remember me for sure and I don't want them to get the idea that I don't like them.
20% extra on top for doing your job shouldn't be expected.