That's kinda true. Alternative, if you personal life style allows for it, you may start growing your own tomatoes -- you might not get them all year around that way, but the taste difference is so worth it.
And in the end, you gotta eat something. I suppose instead of not eating anything healthy at all, the more prominent strategy seems to have been to accompany healthy produce with super-unhealthy condiments (basically, loads of sugar, salt, and fat) to make it tasty again. That's probably the more worrying consequence, though.
I think salt and fat are not as unhealthy as people have made them out to be over recent decades. Especially considering what foods people choose to eat to replace the lost calories that usually come from fats.
I don't believe table salt added to cucumber, tomato, or anything else is bad for most people. Likewise certain fats in reasonable quantities is probably quite good for you. It's also delicious. I would say that dousing anything in syrup, ketchup, or any standard salad dressing with sugar is a bad idea. Even honey is questionable.