I've washed SD cards, cf cards and memory sticks and they all still work.

Keyboards can also survive dishwashing with gentle soap. So can motherboards

I have a working(!) motherboard that survived an international flight in checked luggage, wrapped in nothing more than cotton t-shirts.

I don't advise it, but tech can take quite some abuse.

I have an xBox series X, a 32" 4K monitor, an HP EliteDesk SFF PC/homelab/media server and all the assorted gubbins to make everything work, that survived a 15h international flight with one layover packed in my checked luggage.

Strategically placed underwear and socks can do wonders to protect things.

That's nothing. I've shipped electronics to space, to fly through the Van Allen belts to be showered by protons and electrons ;)

In that case I'd be worried about header pins getting bent

I've always dishwashered all the keyboards I've owned. They usually come out looking new.

(never tried it with a wireless one, so...)