One of the prouder moments in my career. I’m getting choked up just writing this. I hope this encourages you to be in the medical field. I guarantee you, that if you do, you will be able to write something like this some day. And tears will probably run down your face, like they are mine right now.
Your question alludes to why medicine and nursing is perceived as a calling. One must be truly engaged in order to "go beyond the call of duty" and love what they do day after day. I think the above examples are beautiful.
I have many examples where my nursing practice went beyond what I was being paid to do (although always within scope of practice). The example that comes immediately to mind is from years ago.
I was taking care of patients diagnosed with HIV related Kaposis Sarcoma. This was a horrible disease which manifested with purple lesions on the skin as well and internal lesions. I was part of a team conducting clinical trials with the patients. I became close to almost all of my patients. In one case, I became close not only to the patient, but to his family as well. I was invited to their home for holidays and celebrations. I loved this guy; sweet, talented and kind. As it was in those days, he ultimately failed all treatments and was given no further hope. He suffered terrible seizures due the lesions in his brain and was in the hospital for many days.
I was on my day off. My patient was actively dying. The family asked the nurses to call me at home and have me come in to be with him. They couldn't bear to watch their sweet family member die. I went in and stood by his side, held him, and told him it was ok to leave. That everyone would be OK. That he would be free from suffering. When he passed, I stayed with his body and prepared him for the morgue. I assisted the family with one last viewing. I walked him to the morgue.
So yes, doctors and nurses almost always, in some fashion, go beyond the call. I hope you hear that call and pursue what will be a lifetime of rewarding service.