heart in the right place, have one's - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Be well-intentioned, Her plan to reconcile them didn't succeed, but she had her heart in the right place. [Early 1800s]