Best way for exposing Linked Open Data. Wrapper vs scrape

Here's my scenario: I have several different datasets. Most in MySQL
databases. Some in PostrgreSQL. Others in MS Access. Many in CSV. Each one
of these datasets is maintained by its own group of people.

Now, my end goal is to have all these datasets published as 5 stars Linked
Open Data. But I am in doubt between these two solutions:

1) Give a generic wrapper tool to each of these groups of people, that
would basically convert their datasets to RDF, and allow them to publish
this data as LOD automatically. This tool would allow them to publish LOD
on their own, using their own server (does such a generic tool even exist?
Can it even be built?).

2) Scrape these datasets, which are at times simply published on the Web as
HTML paginated tables, or published as dumps on their server, for example a
.CSV dump of their entire database. Then I would aggregate all these
various datasets myself, and publish them as Linked Data.

Pros and cons for each of these methods? Any other ideas?

Thanks!