So there is already a very influential Harvey (or two) in the Batman universe. Paul Dini added a few characters in to the DCAU, including Harley Quinn, Renee Montoya, and a few others I'm probably forgetting.
However, there is also a character who violates a very important rule, The One Steve Limit, that being the Detective Harvey Bullock. Has Dini or another creative influence in the DCAU ever commented on why they chose to name this character Harvey? Especially when the other Harvey is also a legal professional?