Of course there is a difference between those two hypothetical situations. Situation #1 happens all the time, and doesn't involve sex. Situation #2 is
not a common occurrence, and does involve sex.

Now, being serious...
The reality is, most porn stars weren't recruited, they
applied. Meaning, they walked into an office, either responding to a job posting in the paper, or an ad online/tv, and actively applied to be a porn star. The issue with non-consent/coercion is a moot one. Now, I'm not saying there isn't plenty of room for exploitation in this particular industry, but the fact remains that most porn stars actively pursued their chosen trade, and they make VERY good money doing it. Since they
actively pursued it, you can't call it non-consensual - even if they occasionally think 'why am I doing this?', it's still consensual, because if they wanted it to stop, they could simply get up and leave. Keeping in mind that I'm referring to
most porn actors/actresses, as well as reputable (it's all relative) production companies.