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the idea that your behind someone implies that you are going the same way, which is inherently wrong because no one is on the same path.
to use an orienteering metaphor (which y'all might not get bc my sport is a niche sport, so message if you want an explanation) if you reach a checkpoint and dib it, and your excited that you're halfway done, and someone else comes up behind you and is excited because this is their second last checkpoint, you aren't behind them, you are just running different courses. it might feel like you are going slower than them, but they are on a different route, they might have set of sooner, the route they are taking might be shorter.
but even if someone on the same course as you overtakes you, you aren't necessarily behind them. they might be better at running, or have more grippy shoes, or be more hydrated.
this also applies for passing others. you're not necessarily better than them, you might be more equipped, they might be lost, they might have taken a different route to avoid slopes because of an injury.
you don't know what help others are getting, you will never know their circumstances. so don't assume you are ever better/worse than anyone.