Don't know about that
I think that the thing to keep in mind is that people tend to think of themselves as either completely non-technical or experts who could do our jobs just as easily. The completely non-technical types just want to get back to work. The "experts" will never believe that they couldn't have solved the problem.
I recall seeing a rates sign at a mechanic's garage that said:
$25/hr
$30/hr if you watch
$40/hr if you help.
If I'm re-writing your router table, I don't want to explain what I'm doing to you line by line. I don't want to have a discussion with you about hexidecimal conversion. I don't want to discuss Cisco's standing on Wall Street. I want to write the table. I will accomplish that task faster without someone standing over my shoulder.
As a DBA, you get much less of that. You are doing "magic" and no one wants to disturb you at your spell casting.
My partner is an Application Architect. Recently, he had some down time so was asked to take ownership of a spreadsheet that should have been a database from the beginning. He organized the data to the extent that Excel would allow and was able to produce reports from it. From that moment on, no one would open it. If they needed anything or had changes, he got them. He was doing "magic" because an unusable data store had become usable.
A better class of customer won't change how people perceive the different but necessary jobs in IT.
