Agreed. It's completely dependant on context. Give credit where credit is due. One of my reports had a great idea a few weeks ago and I had him implement it on his own. Knocked it out of the park. When speaking with him I refer to it as "his" improvement. It fires him up that it's his.

People need to be able to take credit for things. If they can't, they can feel like they are just a cog and what they do doesn't matter.