Every attempt to become more effective in your work should be grounded in something more than just, "well I want to make more money/get promoted/be recognized as excellent/etc/etc/etc"
These extrinsic factors that motivate us are valuable in themselves but pursued to exclusion of everything else can lead to damage for yourself and your team.
So, here's two other reasons to aim for excellence:
1. Being excellent in your work is a gift to others.
Doing small things well with patience, grit and grace is like leaving behind a gift for another to find. All the problems that could have been but weren't, all the issues that were lessened, all the goodness that resulted from your excellence benefits the other.
They may never realize the pain you've spared them, but the good deed in itself is worth it.
2. Being excellent in your work is a gift to your future self.
It's not crowded on the extra mile, and those who are there are there because they understand the value of sowing and reaping. What we reap in the future is a function of what we sow today.
So, the time spent to add a skill to the stack or hone a talent into a strength is never wasted because it come to fruition later.
Your future self will thank you for aiming for excellence in your work today.