If it was a basic biological function then the marketing department wouldn’t exist.

Consumption and love/sex are things we tend to do naturally, but marketing just ramps it up to a level we probably wouldn't reach if we weren't forced or manipulated into it. Just about anybody can fall in love, but marketing can pressure you into thinking that not falling in love and being with someone means you've failed at life and marketing can fill with you anxiety if you aren't in love, or haven't had sex, or you've had sex too early, or not early enough, or not often enough, etc. Naturally they've got all kinds of things to sell you to help.