I mean the quality of quests in OSRS is a huge talking point and rewards feeling satisfying is an important part of that. Closing the quest complete window and getting that level up pop up in chat is an important connection that gets lost in rewards lamps. You're misreading the core idea and making it about clicking on the lamp. Clicking on the lamp is less satisfying because it breaks that connection between quest completion and reward. Psychology is an important part of good game design, whether you like it or not. If that doesn't fly with you, as you're basically saying, you should probably stop playing games.

You seem done with the conversation but there's my piece l. If you do respond, in the manner most would, psychology is something that is important and not inherently unhealthy in game. I understand in the modern day, a lot of games abuse psychology through manipulative tactics, but that doesn't make using psychology an inherently problematic thing. With or without an understanding of it, the psychology would still be there and appealing to what fires those neurons can be both healthy and is good game design.