It may have looked that way until he had to resign in 2018 to deal with fraud charges. He ended up stepping down as chairman for three years (Although he somehow remained the CEO) and was fined 20 million US $.
And at that point, Tesla hadn't made a profit.
The famous Musk tweets. He's a bit more careful to shoot from the hip with his tweets these days

useful website for seeing the growth over last 4-5 years
https://www.macrotrends.net/stocks/charts/TSLA/tesla/revenue