What a psychopath. To anyone who may be in this kind of situation, trust your instincts and leave . It will not get better. You will find other, better opportunities elsewhere. Best lesson I ever learned was from a high level exec that had just started at the company where I worked. He quit in 2 weeks. Impressively, he did it without drama or really even causing bad will - he just told the CEO it wasn't a match, and…
Years ago I took a dev role at a very well known UK organisation, a prestigious brand supposedly good for the career. Their systems turned out to be smoke and mirrors of the most braindead kind. One and a half days in I'd seen enough and I quit. If you know, you know.
Seems that raw pragmatism/self-preservation clashes with conscientiousness in some cases like this.