I would recommend giving it a view if you have the patience and the time, but here's the TL;DW for those who don't (You should still watch it anyway :)) )
Rule 0: Without power, you cannot affect much of anything beyond your personal sphere of influence, and even that is limited.
Rule 1: You cannot have power of any kind without supporters. Supporters are the ones who enforce laws/regulations/policies, collect treasure, do the dirty work for you, etc. Key Supporters are those whose influence you absolutely need in order to gain power. Supporters do not do anything for free, so in order to gain their support, you have to give them something in return... IE treasure (Treasure in this case can be defined as anything that can be gained or obtained via power... this is most often money or influence, but can also be power itself, specific laws or orders, etc.).
Rule 2: Once you are in power, you effectively control the treasure directly, however, that is all you can control directly. Treasure is needed to achieve your goals whatever they may be, but regardless of exactly how much treasure you have at your disposal, it is a finite amount... so you have to spend it wisely. Your supporters were each promised a portion of your treasure (or with something else they wanted), so you are obligated to pay them, because if you do not, then they WILL withdraw their support and try to replace you. Remember that you cannot get anything done without help from Key Supporters.
Rule 3: You need to minimize the number of Key Supporters you have. More supporters means less treasure for every single one of them... and the more strained your expenses are going to be. So, you have to eliminate supporters in some form or fashion who are no longer useful to you. It also helps reduce the odds of rivals gaining significant power.
Note that these rules seem to apply to just about everything in this Telestial Sphere... wether it be in Business, Democracy, a Dictatorship, an organization, etc. They all seem to follow these rules... and if you break said rules, then you risk losing your power. THIS is why very little changes when a new political party comes to power, why so little seems to get done, and why there are a whole lot of other issues in our nation and in others...
BOOM! Mind Blown!