Twitter CEO Jack Dorsey has complained about a proposed tax to support the homeless in San...: Twitter CEO Jack Dorsey has complained about a proposed tax to support the homeless in San Francisco, arguing that it is unfairly structured. In a tweetstorm fired off on Friday, Dorsey argued that the new taxes under Proposition C would disproportionately hit Square, the payment processing company he also leads. It followed Salesforce CEO Marc Benioff, who has a net worth of $6.2 billion, bashing Dorsey in an interview for 'hoarding' his own $5.3 billion fortune.