I can relate a story from the 80s. A young and up-and-coming oboe player had entered a prestigeous music compitition. Now, he was good enough to win, without being cocky about it, but ended up coming second. The judges called him back afterwards. They told him they apreciated he was a good enough player to win the competition but his instrument had held him back. They then awarded him £2000 towards the cost of a new instrument. I'm sure that same award would be much more now.
My point is that the better the quality of instrument you play will no doubt contribute to improving your own playing. Don't put yourself down.
I'm certainly not the world's best bass player but after I bought my first Status bass, my playing lead our band leader to coment that one solo I played was the best bass solo he had ever heard. Don't really think he listens to many bass solos though.