There is also a greater benefit in moving millions of dollars worth of bitcoin overseas cheaply, when you compare it with dust transactions. Yet, both can pay the same. According to your reasoning, an added fee that is respective to the amount transacted is reasonable, because why would a person who moves $1 billion worth of bitcoin pay the same as I do, when I'm only moving $100?
That is not my reasoning, but your point has merit.
The answer is that these are the rules set in stone since 2009. If you want to opt-in to bitcoin, you should acknowledge and accept them. Otherwise, you're free to use one of the many altcoins that operate under different consensus rules.
Every hard and soft fork is an example of "rules that were set in stone since 2009" that are no longer followed. More importantly, are you advocating that changes to the Bitcoin protocol should not be discussed?