By poking fun at Palantir's soaring valuation and high prices, the Salesforce CEO may have validated the bull case for the stock.Marc Benioff is the charismatic and sometimes provocative CEO of enterprise software giant Salesforce. During a recent interview with CNBC, Benioff made a pointed remark about one of its chief competitors, data mining darling Palantir Technologies (PLTR 3.08%).Let's take a look at what Benioff had to say about Salesforce's rival, and why it could spell encouraging news for Palanti ...