If the SYSTEMS are not changed, it doesn't matter if people are changed or not. Even if people are changed, the new ones adapt to the demands of the system in order to succeed in it.
Example: Politics. If the System of politics is corrupt, doesn't matter if you get the most honest saint into that system. If that "honest saint" is to "truly succeed" in this corrupt system, the "honest saint" will have to change to survive and thrive in the corrupt political system. Take examples from histories of real-life politicians in the US.
If the SYSTEMS are not changed, it doesn't matter if people are changed or not. Even if people are changed, the new ones adapt to the demands of the system in order to succeed in it.
Example: Politics. If the System of politics is corrupt, doesn't matter if you get the most honest saint into that system. If that "honest saint" is to "truly succeed" in this corrupt system, the "honest saint" will have to change to survive and thrive in the corrupt political system. Take examples from histories of real-life politicians in the US.
Hence, SYSTEMS need to be changed.