Mostly planting in the vicinity of wires is only an issue if you cut it while you're digging. Dangerous power lines are (should - old neighborhoods are less likely to follow code) be deeper than you would dig for a standard shrub planting. Cables near the surface are likely tv/internet, where the only problem to slicing them is your service goes out and you have to pay for them to get replaced.
It's more of a problem to plant certain things (i.e. willows) in the vicinity of WATER lines or drains, because the roots will seek out, penetrate, and clog the sources of water. But roots aren't generally interested in electric cables, and instead just grow around them like they would a rock.
Which is to say: Sumac or ninebark should be fine there.
