The “Mr. Wonderful” of “Shark Tank” fame knows a thing or two about wealth. After founding SoftKey (later The Learning Company) and selling it to Mattel for $4.2 billion in 1999, Kevin O’Leary has built his career around identifying what separates wealth builders from hard workers. His answer is simple: ownership. Explore More: Multi-Millionaire Says Timing the Market Is Impossible – Here’s What You Should Do Instead Learn About: 3 Advanced Investing Moves Experts Use to Minimize Taxes and Help Boost Retur ...