Banking, at the level of being the financier of nations, was a global industry then as it is now. Many of those people at the time were British or American and a number of them died on that boat.
How does having extra bankers stop someone from assassinating an archduke, Austria from sending an ultimatum, or Russia from supporting Serbia? I don't see it.
No, we're talking about 2 out of hundreds. George H. Burr & Co, the Morgans, Henry Goldman, Samuel Sachs and their families, the list goes on and that's just NY - the banking families were numerous.
