Recently in the news, TTC ads telling a (fictional) child of drug users that they should pray as a solution to their problems.
I have to assume that the people placing these ads think they're altruistic, because whether or not people pray have no possible impact on the advertisers or their church. They must think that praying will help people, so they're taking out these ads encouraging people to pray.
But people who are able to pray - which probably includes everyone for whom invoking Jesus would be effective - are already aware that prayer is an option. And those who aren't aware that prayer is an option (and are open to a new religion) wouldn't know how or why to pray.
Therefore, this ad doesn't tell anyone anything they don't already know, while not telling those who it wishes to take action how to take action.
Why would you spend money on that?
I also just noticed that the "child" in the ads is saying "Dear Jesus" and "Thank you for hearing my prayer". Which means that they're already praying! So the ad responds to a prayer by telling the kid to pray? That's a wee bit assholic.