HN user
Who is the 'software development community' exactly? Small no-name stratups in San Fran? Small no-name developers working at unheadrd of companies?
ThoughtWorks are thought leaders in agile whether you want to believe that or not.
Having worked at both, I can assure you that ThoughtWorks are thought leaders in the agiile development and change. It's hard to get in and you have to be talented to stary there.
Accenture on the other hand, they make it hard to get into the consulting arm, but the tech arm (Accenture Solutions) is easy to get into (although you'd be surprised at how maby people tank in the interviews) and even easier to coast through, producing crappy software and bleeding their clients dry.