As Wonder Woman is being held captive by Batman (or at least someone who looks like Batman) and is powerless with her bracelets chained by a man, the expression on hervface is priceless and says it all: "So weak! Batman chained my bracelets together to make me powerless! But he seems so different! The Batman I know would never do this to me!"
i never noticed that it was supposed to be an eagle on her chest. all those years and cartoons and comics and inever saw it till now. i even googled a buncha ww pics to see if that was just your interpretation but no i have just been blind.
She doesn't have it all the time, quite often it is just a stylized "WW", or a combination thereof. Besides, the eagle in this image is particularly "real" looking (as opposed to streamlined/simplified), so it is more noticeable.