owl:sameAs - Is it used in a right way?

Hi folks,

I am started to being bugged after reading the paper called "When 
owl:sameAs isn’t the Same: An Analysis of Identity
Links on the Semantic Web"[1]

According to W3, definition of owl:sameAs is this: 'Such 
an|owl:sameAs|statement indicates that two URI references actually refer 
to the same thing: the individuals have the same "identity".'

So, in that paper, authors refer to Leibnitz about "identity" concept 
who says in order to count two assets identical, these two must share 
the same properties with same values.

My question is, does LODD use owl:sameAs properly? For instance, are 
those two resources, dbpedia:Metamizole and drugbank:DB04817 (code for 
Metamizole), really identical? Or am I getting the word "property" in 
the paper wrong?

Cheers

Umutcan

[1] http://www.w3.org/2009/12/rdf-ws/papers/ws21