Why? Other than you stand to benefit at the detriment of someone else? Why should the institutional trade be harmed via greater market impact because you need to get a cut? That would in effect take away liquidity.
Quote from bears21:
bottom line is anybody who shows price improvement should get a fill either lit or dark price improvement is price improvement trade throughs shouldnt exist thats how sweeps use to work top on down now if dark pool was showing price improvement over my order so be it but thats not the case regardless of size