People can get used to a certain level of usefulness from a person, and start to take it for granted. The first time you swoop in and do something in an hour that had been holding others up for weeks, they're astounded by your usefulness. The tenth time, it's just what you do, so it's expected.
And yes, that does seem to happen more if you're wearing work boots, probably because people who never wear work boots assume that, if it can be done in work boots, it can't be as astounding and valuable as it appeared at first, or you would have moved beyond work boots by now.
Usefulness may hold its value in the trenches, but the people ultimately deciding everyone's salary generally aren't in the trenches.
And yes, that does seem to happen more if you're wearing work boots, probably because people who never wear work boots assume that, if it can be done in work boots, it can't be as astounding and valuable as it appeared at first, or you would have moved beyond work boots by now.
Usefulness may hold its value in the trenches, but the people ultimately deciding everyone's salary generally aren't in the trenches.