After all, if you don't "toot your horn", who will? What's wrong with a little self promotion, anyway?
Here's a different perspective from Luke 14.
Now he told a parable to those who were invited, when he noticed how they chose the places of honor, saying to them, "When you are invited by someone to a wedding feast, do not sit down in a place of honor, lest someone more distinguished than you be invited by him, and he who invited you both will come and say to you, 'Give your place to this person, and then you will begin with shame to take the lowest place. But when you are invited, go and sit in the lowest place to that when your host comes he may say to you, 'Friend, move up higher.' Then you will be honored in the presence of all who sit at the table with you. For everyone who exalts himself will be humbled and he who humbles himself will be exalted."
What are the "places of honor" that you assume in your workplace? Are you spending time on self promotion instead of serving and letting your performance speak for itself? By scheming, strategizing and positioning to be recognized, are you missing out on an opportunity to see God work?
Consider this thought - it's always more satisfying to trust the host and have him promote you to a place of honor than to strive to do it yourself.