They probably do not get the same tax cuts: a “normal” person, making a paltry $250,000/year only reduces taxes by 24% of their giving, where the ultra-rich get 37%.
But the real difference is scale. A million people each giving $100 to their favorite charity is going to distribute that money more-or-less according to the community’s overall priorities. One person giving $100M to their favorite charity has no connection to the broader community and social goals. They supercharge that one thing, which takes attention and resources from everything else.
Having a single, central receiver to collect inputs from 5+ A/V sources and deal them back, arbitrarily? to 6 different outputs seems awfully complicated. Something like Jellyfin or mythtv with one or more TV tuners would let you originate all of the TV & streaming signals from your central source to client players - kodi or whatever - in the player rooms. Most of those have at least some control through homeassistant. Kodi on RPis with some basic class D amplifiers in each room, run through the TV, if the room has a TV. Probably couldn’t get synchronized audio in all rooms that way.