Meeting Expectations not easy

Is it tough working/living with sincere people? Do they have a lot of expectations ?. These are some of the questions that come to my mind.
My wife is a wonderful person. She is one of the most sincere human beings I have ever seen in my life.
Now I realize that people who are sincere, hard-working and intelligent expect the same from people around them,
which leads them to set the expectation bar a bit too high for a normal person.

And i realize the same in my office, I think 🙂 that I am a sincere and hard working person, and due to that if anyone questions me,
I feel they are questioning my sincerity.
E.g. my office timing is 9 to 6, however if I come by 9.15 and my manager tells me to come by time, I feel hurt. Why ?
In a way my manager is right that everyone should follow office timings, but looking at it the other way, you feel if I am completing my work on time and with no issues
then why should he be concerned about me not coming on time (Except for days when you have a meeting at 9 :)). Of Course if you have meeting at 9 and then you
don’t turn up then it make sense to be told, to be on time.