While Capt. PB's comment
Rather than saying "Always Follow the RA" it is better to say "If you possibly can, follow the RA. Failing that, get as close as you can. Whatever you do, never manoeuvre opposite."
is admirable common sense, my personal feeling is there is not enough time to evaluate from the time the RA is activated. That would require looking at the situation, making an assessment, taking a decision, and acting on it. Too slow.
Like GPWS, the reaction has to be very fast indeed. And that leaves little or no time to think how useful you think the RA is.
Better by far simply to obey. (IMHO)