I disagree. My undestanding:
A Jedi would show compassion within the boundaries of the law.
A Sith would do whatever he/she wants.
Also, Sith is not the same as "Empire" as well as Jedi is not the same as "Republic."
Jedi scum show compassion beyond ramifications of law, they are binded by jedi code and if something that republic enforces is against their moral stupidity then they gonna refuse action
Sith, obey the law, only the most powerful and important can get away with crimes and regular ones wouldnt dare to do anything that would end their miserable lives