Ordinals are an entirely opt-in system that you can safely choose to ignore. Bitcoin Core has no concept of individual sats and never will. Kind of like 1 oz of gold will always equal 1 oz of gold, and nobody can tell you otherwise.

However, for those who like the idea of ordinals, ordinals introduce a numbering and tracking system for satoshis, which you can choose to subscribe to or not. What we have seen is some people like this system and choose to value certain sats higher than others, and an ecosystem has developed around this concept, similar to how an ecosystem exists around rare gold coin collecting. The 1oz=1oz maxis can always just melt down a rare gold coin to its gold value, but you may find that some people would pay you more than 1oz for your particular gold coin