Complex sentence exploration : To

In class, we looked at sentences like "I came here to study" and "Shatha came to the UK to perfect her English" as examples of infinitive clauses.  "To study" and "to perfect her English" explain the purpose of the main clause of the sentence.  My students found lots of examples in their reading, but not all of them are quite the same.  Have a look at the following examples I was sent:

1. Organizations continue to broadcast information instead of letting the consumer interact with the Web site content.
2. Online advertising offers the opportunity to precisely target an audience to deliver advertisements that are customized to the user’s particular interest and taste.
3. Nominees to the full-time court are asked to submit standardized CVs and be interviewed by members of a sub-committee of the parliamentary assembly.
4. A key element of the resolution was the Parliamentary Assembly’s desire to increase the proportion of female judges on the court.
5. The protestors should join us in attempting to persuade other European publics and governments to abandon these cruel practices.

I think that sentence 2 is a very different example to all the others.  Can you see why?  Please post your suggestions below as comments.