By Dan Weil Cathie Wood, Elon Musk and Marc Andreessen criticized passive indexing on Twitter. Wood said it created ‘misallocation of capital.’ Three prominent business and finance executives — Elon Musk, Marc Andreessen and Cathie Wood — took passive indexing to task in Twitter exchanges over the past few days. Musk, of course, is chief executive of electric-vehicle market leader Tesla (TSLA) – Get Tesla Inc Report. Marc Andreessen is co-founder of venture capital firm Andreessen Horowitz, and Cathie Wood is chief executive of Ark Investment Management. Now, two Bloomberg columnists, Timoth…