Isn't a panel just a (not-so-big) part of quality? I think for professional monitors (Eizo and NEC comes to my mind) there is a lots of electronics that provides consistency and wide-range adjustments.
For a developer, not sure an actual pro grade monitor is a worthwhile investment. The actual non-gaming competition here is something more like the Dell Ultrasharp line.
'Pro-grade' like something desired for people working with image/video? Not really IMO.
On the other hand both Eizo and NEC have usually good entry-level models as well. They won't have all the bells-and-whistles though that you may find elsewhere like FreeSync/G-Sync, 4K etc. resolutions or 144k refresh rates... :/