There's a pizzeria here. the owner is a native Italian married to a Finn. On their list they have pizzas inspired by their children. The one named after their son contains minced meat (maybe sort of a Bolognese) and wieners. And unlike the uncooked artesan sausages used in the owner's own pizza the wieners are those skinned industrial cheapos.
My wife likes pineapple with ham in her pizza and at home I spread them all over instead of drawing a line for a pineapple free zone. It all goes down without gagging.
As Dadtallica said, there's well known gourmet combinations of salty dishes with sweet fruity sauces/jams/whatever. Full fat mould cheese like Gorgonzola or Roquefort with marmalade? Or just served on a slice of pear? Peach or pineapple on a Schnitzel? Not to mention the variety of savoury sauces made of sweet fruit and vinegar.