The church became "institutional" long before the so-called "Protestant Revolt".  There would NEVER have been a Protestant Revolt if the hierarchy [including the papacy] wasn't living like secular nobility and kings.  But because neither popes nor bishops could live within their means, they tried to get people [mostly the well-off Germans] to 'buy' indulgences.  This means used to entice the people was a despicable lie---Luther witnessed the lie and wanted to debate it.

Your classic strategy of Satan is laughable.  Satan can pit bishop against bishop----does it all the time.  This has been going on since the time of Constantine.  The official church, then, wanted worldly power---to own lands, wealth, and prestige .  Money laundering at the Vatican[the desire for property---larger and better living spaces], wealth and prestige---caused Benedict VI to finally throw in the towel as well.

In today's world, such 'Marks of Satan' can't be hidden from the people any more, as it once was.