Not to all entrees, no, as I understand the rules, #8 below:
"8. All winning entries become the property of sponsoring organizations."
This rule is clearly stated. That's a significant difference from the contest you're comparing it to. I see this as more like a contract, where it's quid pro quo, something for something. Kinda like selling a photo with the rights attached. As I read the rules, they obtain no rights to the photo unless and until I or someone else wins.
In any case, the proceeds from entering the contest go to a very good cause, Light The Night Walk which supports researchers in their search for better therapies and cures for leukemia, lymphoma and myeloma, and The Leukemia & Lymphoma Society.
May I ask the significance of the question?