There's nothing wrong with that picture assuming it was an electrician who put up the ladder. The aluminum is a good foot or so away from the mains and contrary to popular belief, those wires are insulated, you actually can touch one of those wires and be fine. The OSHA regulation (and the sticker on the ladder) are there to prevent morons from leaning the ladder in a place where the ladder itself could come in contact with the wire since a sharp edge on the ladder could scrape through the insulation.