Well, I imagine the meat was alot more tender and tasty than the old goat I'm still gnawing on from last year so....
To each, their own. I don't see anything unethical about how you handled your business. You decided what your goal was, what you wanted, and took it. While it doesn't fit with the plan for my location and hunting area on my ranch, I'm not about to impose upon others my preferences and goals.
In other words, congrats and good eatin.