There are some advantages to having a psychopath as a leader. In the immortal words of reality TV show contestants the world over: I am not here to make friends, I am here to win. So I put the most predictable person in charge. But if a character progresses too quickly up the ranks, they will, to put it plainly, lose their shit at the disconnect between expectation and reality. The new path to escape via nobility is hard because I need the wealth to satisfy our noble's desires. These are not desirable behaviors in a leader. Stacking these penalties can lead to colonists going a bit over the edge: throwing tantrums, binge drinking, murdering their rivals. She won't get mood penalties when others die along the way… which is good because the expectations of an imperial noble are hard to meet on the rim, and that causes mood penalties. No matter what happens to the others, Onesan won't lose her cool.
