Then you also have companies like Scion using the incubator concept as a marketing campaign where they do provide a small amount of seed funding, and mentoring

Then you also have companies like Scion using the incubator concept as a marketing campaign where they do provide a small amount of seed funding, and mentoring to young entreprenuers, but dont take any equity in return. So instead of selecting the business most likely to gain a return on their investment, they select companies that best represent their brand and the image they are trying to create.