I don't think public at an event will be influenced any more than someone on flickr will be influenced by seeing pictures of a hobbyist. For example at a wedding how many guests (or the couple) do you think will remember what camera the photographer used. Heck i am interested in cameras and even I don't remember the camera photographer used at my wedding. Videographer used a sony and only reason I remember is because I recognise the model (nothing gained there). So I don't think it makes much difference to public whatever they use as long as clients are getting the results.