A. Who is "you folk"?
B. Sure, the samurai lost their political power by the Meji period. That doesn't mean their social and cultural influence disappeared overnight, especially since the country spent decades more or less under the thumb of the Imperial Japanese Army....who saw themselves as carrying on the samurai legacy, well within living memory for some Japanese. In the 30's and 40's it permeated the school system, so generations of Japanese grew up with that same military discipline, inherited from the IJA, who inherited it from the samurai.
They sure as hell didn't get rigid selflessness and tolerance for suffering from rich merchants. Plus they still form up for morning PT sessions at corporate jobs! They just have the intensity dialed down to.....1/10. Do you ever see this in any culture that hasn't had a strong military tradition?
https://youtu.be/taHYsmLpWDY
Couldn't find a decent video of Marines doing company-level PT for comparison, but here's Army Basic Training at "Relaxin' Jackson" (everyone pokes fun at graduates of this base for producing the softest Soldiers): https://youtu.be/cIVWU8hyuI0