I think they are, and I've been one all my life. Popular folks.
A strong sense of how events will play out and consequences (Ni), along with a good understanding of logical systems which may be inherently flawed or corrupt (Te) allows us to see impending doom or things jumping off of a cliff. Often there seems to be a culture built up around such a flawed system that everyone believe works and is correct, and have spent their lives building and maintaining. Except that you know it doesn't work and will fail. You amass mounds and mounds of data trying to convince yourself that you're wrong, but all evidence points to you being right. They system will fail and you know it. But nobody else does. The INTp then blows the whistle, and they can because they don't understand all the negative social consequences and ramifications due to PoLR Fe. The INTp then gets confused. Why are you all upset and yelling at me? What's wrong? It's broken and we need to fix it before it's too late and while we still have a chance!
Not that other types can't be whistle blowers too, but I think INTp's may have a knack for it.
Does this make sense? Thoughts?