Maybe a more relatable example: ticket scalping. These are people who rush to buy tickets to popular concerts or sports events and then resell them at the venue

Maybe a more relatable example: ticket scalping. These are people who rush to buy tickets to popular concerts or sports events and then resell them at the venue priced much higher than sale value (and a lot higher than the venue/artist/sports team got). Are these people adding value in any way or form or just leeching?