I think what makes a lot of what you're saying so unpalatable is experience concerning how people say they'll act and how they actually end up acting, as well as a knowledge that people slide overtime.
To touch on your escitalopram point - it is ridiculous to believe we know enough about how these drugs work to make claims like this. First off, there are environmental influences in mental illness - in subtle circumstances, long term psychological stressors or in more acute settings, triggers, which have obvious influence on the course of someone's disease. If you're so content as to go by the book and provide minimum pharmacological interventions, you're doing your patients a profound disservice. Second, compliance with drugs is a big problem, especially in psych, and if the patient notes the apathy in your care, they're less likely to take it then if (on the other extreme) someone who clearly cares deeply about helping them provides the same prescription. And we're wired to pick up on these things (theory of mind), and unless you're some stellar actor (which, given the derm comment, you'd probably be doing that were it the case), people will see through it very quickly.
A broader comment on your attitude is that you might say "I'll be perfectly proficient", but we're all human. we slide overtime. Youth and enthusiasm wane and hopefully additional expertise and experience buffer the decline in quality of care or keep it going up. Even the most exceptional folks will have rough days, and maybe not communicate and listen as they might on their better days. When it comes to any long term behavioral pattern, you're far more likely to overshoot or undershoot than hit the mark, and everything you've said is evidence you'll consistently undershoot your goal of "proficient". 'I will try to improve my knowledge base', in the context of your other comments, are clearly empty words. We should be trying to bring the field up, not preserve a flawed status quo. Practitioners with attitudes like yours are obstacles to the field improving.