I'll be the first to admit that a lot of people doing SEO are short-sighted at best, and manipulative dirtbags at worst. A ton of the stuff out there being sold as "SEO" is hot garbage, that objectively makes the internet a worse place. I've been learning SEO over the past few years, and believe me, the snake oil you might see in your spam folder doesn't even come close to some of the convoluted bullshit schemes I've seen presented as "good business practices."
But we're not all bad. At least that's what I tell myself every morning.