Be careful about survivorship bias. For every Apple, Amazon or Microsoft which grew from a garage company to an international megacorporation there are thousands of cases of companies which stayed small or went bankrupt.
How can you from the outside judge how great the leadership, how talented the workers and how amazing the product of a company really is? Public perception is one thing, but you often don't know what really goes on within a company. The hipster CEO might actually be an angry despote who doesn't know what he is doing, the talented engineers might be interviewing at other companies and the product might have no chance against an unpublished product from a competing company with far more resources.
Regarding Tesla: They enjoyed the prestige of being the first company to mass-produce electric cars which looked and felt like real cars. But they are no longer alone on that market. More and more well-established car companies want a piece of that cake and brought their own electric cars to market. Will Tesla be able to maintain their market leadership? Will they get relegated to one among many? Or perhaps will they even get crushed by the competition? Only the future will tell.