If you don't want your data scraped for collection, you wouldn't put it on Linkedin. Really the only argument is, is it more moral for Linkedin to do it instead of a plugin?

There's no moral issue here. Sales people are going in and copying and pasting data field by field, and we made that process more efficient. All that software did is replace multiple clicks with one. Scrape the DOM and dump it into their salesforce instance. A sales person still needs to initiate the action. I'm happy to admit that I don't like sales people, I don't like cold calls, and what we did made it slightly more efficient for them to cold call people. But calling it a/immoral or an invasion of privacy is silly, unless you've already established that cold calls are immoral and I missed that.