Is this not simply a reflection of which companies are willing to pay, or sponsor, Instagram with the most money? Or is this a concerted effort by Instagram, or

Is this not simply a reflection of which companies are willing to pay, or sponsor, Instagram with the most money? Or is this a concerted effort by Instagram, or society in general, to only accept ads of this nature? Should Instagram require a diverse set of advertisers/sponsors? Even it means that they will generate less revenue?