The distinction between amoral and immoral can be a fine line though, easy to cross.
I don’t think I’ve ever not identified with him. The hardest time I had was with Doctor #6… until I thought of those few times in my life where I let myself get paranoid. Thankfully I can count on those times with one hand but still, I went through it. That’s when I could identify with 6.
This particular scene threw me to a few instances in my life where I had to make decisions that I knew would negatively affect some to the benefit of others and I had to be methodical, calculating, cold of heart towards them. That’s not generally my way, but there was a greater purpose involved but I had to do my part and it was unpleasant.
In those times, was I a bad man? I was and I wasn’t. Both true, depending who was looking at me. So, the Doctor here was also me and I him.
The Doctor is always moral but his morality is alien morality. Rational self-interest would not come into play, not in a pure sense, even if it appears so at a particular moment.
I did a search to get a more varied opinion. “Doctor Who” rational self-interest. I wondered if there was something I was missing perhaps.
This article suggests that, perhaps, what the Doctor is a Doctor of may be sociology. It would make sense. Not quite an anthropologist because he doesn’t have much interest in ritual, but rather in the “what’s going on here?” question, which is a sociologist’s question.
While I don’t like some aspects of sociology in practice, or what it’s used for, as an overall field, its appealing. Sociologist would make sense, although I’m sure other arguments could be made for other fields.