Motive?
What is the motive? Seriously?
Many very large companies use Salesforce. Access to that data alone is worth millions.
Salesforce has warned that miscreants are trying to infect its customers with a remote access trojan (RAT) dubbed Dyre that siphons off Salesforce.com login data. "On September 3, 2014, one of our security partners identified that the Dyre malware (also known as Dyreza), which typically targets customers of large, well-known …
Yep! People have been selling stolen client lists for decades. It would also be a goldmine for social engineering, e.g. If MegaSoft was using salesforce for post-sales support, you could find a user with an open trouble ticket, and send them some malware as a 'fix.' Only the very paranoid would spot that one.