So... you value following duty as a character trait?
I guess you could spin it that way - but let me take an example.
For the last couple of weeks, my wife and I have been involved in some drama in our extended family. When we discuss in private and try to decide how we should act, I've noticed my wife keeps starting off with "If we were to do X, what would happen?". She likes to try to predict different outcomes and she wants to pick the action that leads to the best one. So maybe she is a consequentialist through and through.
I tend to see the whole sorry business as too complicated for us to predict, especially since I don't want to neglect consequences 10 or 20 years down the line. So I fall back to trying to apply rules that would be generally applicable. "What is our duty to family member X? What is our duty to family member Y?"
It's not that I would ever say "We should do X, even though it leads to worse outcomes." But I do want to consider the long run and I'd prefer not to destroy useful Schelling points for short term gain.
OK, so you use virtue ethics (doing one's duty is virtuous) and deontology as shortcuts for consequentialism, given that you lack resources and data to reliably apply the latter. This makes perfect sense. Your wife applies bounded consequentialism, which also makes sense. Presumably your shortcuts will keep her schemes in check, and her schemes will enlarge the list of options you can apply your rules to.
Disclaimer: I am not a philosopher, so this post will likely seem amateurish to the subject matter experts.
LW is big on consequentialism, utilitarianism and other quantifiable ethics one can potentially program into a computer to make it provably friendly. However, I posit that most of us intuitively use virtue ethics, and not deontology or consequentialism. In other words, when judging one's actions we intuitively value the person's motivations over the rules they follow or the consequences of said actions. We may reevaluate our judgment later, based on laws and/or actual or expected usefulness, but the initial impulse still remains, even if overridden. To quote Casimir de Montrond, "Mistrust first impulses; they are nearly always good" (the quote is usually misattributed to Talleyrand).
Some examples:
I am not sure how to classify religious fanaticism (or other bigotry), but it seems to require a heavy dose of virtue ethics (feeling righteous), in addition to following the (deontological) tenets of whichever belief, with some consequentialism (for the greater good) mixed in.
When I try to introspect my own moral decisions (like whether to tell the truth, or to cheat on a test, or to drive over the speed limit), I can usually find a grain of virtue ethics inside. It might be followed or overridden, sometimes habitually, but it is always there. Can you?