Dont take it out on the couple, Rabbonim should refuse to be mesader kiddushin at very expensive weddings and bans should be placed on expensive weddings.
I have been to weddings where they had personal cigar rollers, I have been to weddings where everything was so fancy that the couple could not afford to invite their own extended family members who wanted to come, they paid for all these expensive things over their own family members who could have came if they just had it at a more affordable place- its disgusting