More people means more ticket sales, which would eventually even out the difference, if not soar to even higher levels.
Ideally the studio will take all this into account next year with Wonder Woman and Justice League.
Plus, most of time when people buy a movie for themselves on Blu-ray/DVD/digitally, they want to re-experience what they saw in theaters.
Obviously there are exceptions, like Blade Runner, but if DC keeps releasing extended cuts of their movies on home media which end up being better than the theatrical versions, what’s to stop people from skipping that trip to the theater and just waiting a little longer to experience something more enjoyable in the comfort of their own home?