In reality its often, without great clinical efforts, to tell the difference between what is a physical effect, and what is a psychological effect - almost impossible to tell the difference between the two. So that if your mind really wants something, even if it might promote more aggression it just might be that getting it might well promote, on a mental level, a more calm behavioral pattern.
No doubt, giving people what they think they want will calm them down on at least a temporary basis.
However, if I started lacing the food at San Quentin with T, I bet I'd get a riot in short order.
We know that all humans have these chems in them in differing levels, who's to say that Liz I didn't have more T than say Victoria? It might account for the more agro nature of her rule, then again, that might just have been the times, or the way she was raised.
These are powerful chemicals, and the impact of them is well documented, and T causes aggression in mammals in almost every case.