There are tons (maybe more?) companies that are successful without the help of an incubator. People have been raising money and building successful companies decades before the idea of an incubator even came about.

Not making it into an incubator didn't contribute to the flop at all. A bad company going through an incubator is still a bad company. I'm not saying your company was bad, I'm just trying to explain that this whole idea that a startup can only be successful if they go through an incubator is completely bogus.