I think flying to a country is a whole lot different than a little tickmark on a website, sorry.
Don't forget that if you fly to a country you are also bound by their laws. They can do anything to you as long as they can make it stick under their laws. It's one thing that people often don't realise when flying somewhere, you are basically giving a blanket submission to their laws!
For this reason I have a long blacklist of countries I won't visit because they have laws I do not accept.
I don’t say it to justify what linkedin is doing - there is no justification for that. I say it to warn those who are conscious of it that there are more places that will harvest the data and use it.
Sorry for my misunderstanding of your point.