The image is put with the content to catch attention and it catches it better than just text. You can't ignore an image like you can't ignore a movement or a person who's late in the class.
Though putting it below the headline is questionable for me. Since the image beats the heading attention-wise, classically you put the image above the headline and naturally it's viewed first, then the headline.
Order of scanning:
1 Image
|
2 Headline
|
3 Text
But in your example it's kinda not natural because:
2 Headline
|
1 Image
|
3 Text
Also it's not recommended to break headline and description because it makes scanning more difficult.
Putting image below the headline on "category" page is dangerous, because if law of proximity is not taken into account, it may be seen as referring to the next title, rather than to the needed one.