While I am sure there are some I have never known a "slob" traditional archer - the discipline required to be a traditional archer seems to limit their numbers. However, there are substantive issues that exist between ethical hunters as to what consitutes an ethical shot. For instance, within the last couple of weeks there was a thread here on whether or not a frontal/front quartering shot was ethical. To generalize that very involved thread - the responses were in two camps - those who thought there were times that frontal shots were OK and those that thought they were never OK. Even though I don't know any of the people on that thread personally, I will bet my next paycheck that every person on that thread believes, strongly, that they are an ethical hunter.
For me - know my limitations, know the limitations of my equipment, know my prey and never take a shot outside those 3 intersecting sets of boundaries is Rule #1. Catch 22 to Rule #1 states that "stuff happens" - the deer jumps the string, I simply miss the heart, the wind gusts as the shot is released, an "invisible" branch deflects the arrow, and so on. When (not if) a bad hit occurs - I am obligated to do everything possible to recover the game animal. To date, I have. I pray I will continue to do so. More practically, I practice, improve my weapons, and study my prey rigorously so, at least, I have a better understanding of my boundaries.