When you start to examine systems, the scope of the problems grow exponentially. There are countless complexities tied up in systems that have been built sometimes over hundreds of years.
Rules, regulations, expectations, norms and more. All working in favor of the system.
The only way the shift begins is by building the next culture. Creating the new norms, the new expectations, regulations and rules.
Luckily, culture starts small. It starts with individuals, habits, teams, language and then it spreads.