It most certainly can be. Think about what the hormone does, it primes the body for action. If you have a lot of it, naturally, you become resistant to it to a certain extent. The hormone doesn't get produced in a vacuum it's regulation and production is something that is established long term. A person who is naturally high testosterone, won't be influenced as much should the environment instruct the body to produce it. A person with low-t in their natural state is in contrast extremely sensitive to testosterone. Thus should a situation arise, where one's status is called into question, or one's sense of self is challenged, and the body produces testosterone, the low-t individual will experience a greater shift in mood and emotion as a result. Whereas a high-t individual may not even recognize the increased T production due to a challenging event, it's just business as usual, due to the person interacting in an environment that promotes high T base levels for years and years.