This line of reasoning reminds me of an anecdote about the German cryptographers' reaction to the Enigma code-breaking program. They were not shocked by the fact that the machine had a weakness; what they were shocked by was the fact that anyone would be willing to bear the cost of exploiting that weakness.
You might be surprised by the attacker's motive or by their willingness to invest in the resources needed to attack the system.
I might not be all that surprised, given that I just dreamed up this potential weakness in the first place. It's entertaining to speculate on who might be willing to spend billions of dollars and lose additional billions in market value, for the sake of damaging the network. But I think it would be difficult to directly profit by doing it.
You might be surprised by the attacker's motive or by their willingness to invest in the resources needed to attack the system.