You can never go wrong if you place your residents' safety and your nursing license above all else.
That doesn't always equate with keeping one's job, or making the powers that be happy, or turning a profit for the company that owns the building. Somebody here already stated it perfectly in their signature line: "Being a good
nurse is not always the same as being a good
employee". If your job is at risk because you insist on safe nursing practice, then it is not the right job for you.
I have a copy of my state's Nurse Practice Act within arm's reach at all times when I'm in my office at work; I've also highlighted the divisions that deal specifically with community-based care settings, delegation, and safe medication practices so that I can refer to them whenever someone questions my decisions. I am fortunate in that I have an administrator who trusts my judgment and backs me up if I need help; otherwise, I wouldn't be where I am. I've worked in too many facilities like the one you're describing, and I won't do it again. I waited too long and worked too hard for my license to allow someone who doesn't even know what they're talking about to run my med room.
Of course, I'm talking tough now because I was very recently reminded of how vulnerable ALF nurses can be to outside influences where meds are concerned (you can refer to my thread, "Am I Wrong?" in General Nursing if you choose). Know that you are doing the right thing, and stand strong!