The cost of a transaction also includes the probability of making a mistake times the cost of that mistake. The probability of making a mistake here is not zero.
If they wired me 6 billion dollars, I would not get to keep it.
And this is why Crypto is unlikely to see wide use for large, legitimate transactions.
The legal concept of ownership is based on the intent and understandings of real humans amongst each other, and with each other's consent. It is technology independent. There are legal remedies to fix mistakes and unwind transactions. This is critically important for people feeling comfortable engaging in these transactions. If a typo can cost you your life savings, you're going to have a tough time moving forward.
Crypto does not have this. It would be like paying for something with a briefcase full of cash that you leave behind the third trashcan on the right. Or was it the second one on the left?
The extra risk that crypto carries is a risk of “black hole” transactions—your mistake causes the money to be vaporized. There are many ways to avoid such a mistake, and I’d argue that the rate of accidental unspendable transactions is vanishingly low which would imply that this is basically a solved problem.
https://tronscan.org/#/address/TV6MuMXfmLbBqPZvBHdwFsDnQeVfn...
Also fees are based off of data/processing not percentage wise so 0.03 really doesn't matter that much in terms of blockchain.
You might think this rate will change, but 0% up/down is the current rate.
There are also parallels found in other frauds like Bernie Madoffs Ponzi Scheme to the tether fraud.