AirBlue A321 at Islamabad, Sukhoi demonstration flight at Mt. Salak...
Sure. There are rare, quasi-legitimate reasons for judging the veracity of these warnings. But the percentages are simply not there to do so.
I don't recall any reports in the literature that state that a mid-air collision was prevented by ignoring TCAS and following ATC instructions. We have the one case that demonstrates the opposite.
This is a by-the-numbers industry. The data just isn't there to support ignoring the warnings even when one thinks one's own judgement in-the-moment, is superior. One is just throwing dice by ignoring the engineering and the SOPs behind these systems.