I have built a lot of engines and have never seen damage due to too much oil pressure. However, that needs 'splainin Lucy...
I have seen 100 psi+ engines and it has never hurt a bearing or any other component. So honestly I tend to think that's a wives tail on the oil pressures an engine can build causing damage. However, IMHO big pressures CAN cause issues. It steals power when you may not need the pressure, it's rough on a Ford style oil pump drive, the reliefs sometimes can't control it in cold weather until it warms up, and most common of all, filters and or filter o-rings can blow at crazy pressures.
I too like volume, but ultimately if the output of a Ford style standard pump can build pressure to whatever the relief is set at, my opinion is that a high volume pump doesn't do much different in function. In other words, if the smaller geared pump can reach 80 psi, a larger geared pump isn't putting out more volume to the motor, it's just dumping more past the relief.
To answer the question though, I like to see 20 at idle, just so I feel good, they can idle lower without hurting, then I like to see it come up quick to the 60-65 psi range.
The key though, especially with most FEs with small pans and front sumps, is to know that it stays there. As an experiment years ago, prompted by a discussion with RJP, I put a 1/4 copper tube on my 427 feeding a larger gauge, at launch on street tires, the gauge wiggled (really dropped toward zero) at launch with an HV pump, stock pan and windage tray. This was on street tires on Craig Road in Las Vegas, not even a track. When I did the 489 later, I went with a Canton pan, and the baffling as well as increased capacity, although that copper line setup is gone now, I did do the same experiment when first assembled and it never wiggled.
Now, did the HV pump make it worse or better in the original issue? My guess is that it neither helped or hurt, the extra volume compared to a standard pump likely didn't go to the heads, it went out the relief, so IMHO it really was a supply issue.