Down is not the only way to go when at the top
It’s often said when you’re at the top, the only way to go is down. If you’re mountain climbing, maybe, but it’s usually meant in a metaphorical manner like being at the top of your game, sport, industry, etc. If that were the case, though, my answer to that is a definitive hell no! You can widen the gap to your competition, making the “top” higher. You can set new records, achieve new accomplishments, do what’s not thought possible, never mind what wasn’t possible before.
Down is the only way to go at the top if you believe it.