IMO -
If to 'their' realtors and builders, technically, no.
If to all realtors and builders in your market area, even those who do not give you business, no-ish.
Either way... pick your battles. Inform the uppers of what is being done, why it may be a violation, the potential impact to the bank if someone snitches, the pobability of snitcher, etc, and let them make a judgement call.
When you get right down to it, it is an empty plastic cup... not box seats to a Cowboys game, although, these days, they may just have the same value.