Social media requires a really nice photo. Just because you see junk on Facebook LinkedIn does not make it right. This degrades your brand. Even if you don’t have a brand or branding concept or logo the damage is still done to your business.
The key to an effective social media photo is not always about being creative and unique, it is more about clean design and eye contat. If your photo can make a connection with your client they odds are much better that they will call you. the creative can be shown in the banner ad or other post on the page.