Zhao Layue's inquiry didn't interrupt Jing Jiu's train of thought, but instead made him ponder it even harder.
What he told Liu Shisui was true, and also his genuine thoughts.
For the people of this world, ascension was the worst evil thing, but it was the sole goal of his life.
So benevolence and the evil were transient for Jing Jiu.
It was because he needed a quiet environment where he could cultivate without being disturbed, and also because of some other emotional attachments, and for this he had to take a stand.
Jing Jiu understood the emotion Fang Jingtian had for avenging his Master, and the desire Lei Poyun had for breaking through the Cultivation state.
The reason his Big Brother could have brought the world into turmoil with one statement was that he understood fully what everybody wanted and desired.