Are all vibrations "good"?

I tend to think of good and bad as products of intent. Einstein was probably a "good" man who did not intend for his research to turn into "WEAPONS OF MASS DESTRUCTION". So, I'm sure that when intense vibrations result in destruction, I'm sure they didn't intend to. They just wanted to vibrate on their merry way and do some traveling, as vibrations tend to do. If buildings fell and bridges collapsed, I'm sure the vibrations didn't mean anything by it. Accidents happen and who told those folks to put that bridge where the vibrations were going to travel through anyway.