I would call this an opportunistic arguement. Religion and politics don't mix and they are not the same. People who use it for power purposes lend them selves to your arguement but this is not always the case.
No matter what one does having a system or a standard simplifies what ever it is that system is applied to.
1. Driving System
If we didn't have the highway code book, when you only have couple of cars on the road the system may not be an issue. When you have a few million the system is a revelation.
2. Political System
If we didn't have politics, how would power and resources be shared out? Anarchy would rule supreme. Perhaps anarchy could be labelled a system also.
3. Religious System
If we didn't have religious systems, how would people know how to conduct them selves with respect to their fellow man and social community they live in? When you have one or two people, may not be an issue but when you have millions it becomes. one.
By the same token having more than one religion becomes an issue as does having multiple political / banking or any other multiple systems.
4. Banking System
5. Accounting System
6. Sports
Even sports have a system and rules which makes the level playing field a more competitive event and more enjoyable imo. People here try and cheat to have an uneven advantage. Just as people who abuse politics, religion the banking system and the rest.
What does stand out is that life is pretty much globally and no doubt universally the same.
They are systems but to call them power systems is only one perspective. On the whole they are voluntary and participation is based on choice and faith.
You can't touch it, smell it, weigh it, see or hear it but in your heart you feel it.