There are two sides to the safety issue coming from business owners especially in regards to marketing. One is pure ignorance, assuming that if you have someone help you with your business you will maintain all rights, and the second is fear of releasing control because of someone else claiming your work.
Both are legitimate sides. Case in point is the Discussion on blumenthals.com regarding a company that helped a business with Google Places. The bottom line comes down to making sure you read the contract and making sure that you will maintain full rights to your content before you ever sign with a person or company. Everyone operates differently and while it may make sense to an individual to relinquish some rights to the work, it does not make sense to do the same with your wedding business. What do you think? Is this an issue you have run into?