Esports used to be just fun grassroots competition until Riot Games bulldozed over the nascent self-sustaining scenes and started the rat race of astroturf-bankrolling "professionalized" scenes lacking the foundation of any sort of viable business model, propped up only by VC sponsors. When those ran dry, the Saudi oil funds swooped in to buy up all the tournament rights as part of their sportswashing campaign.
Riot Games was also the one that introduced the nanny policing of "if you deviate from the squeaky clean advertiser-friendly image we stipulate, we'll make sure you have no future in the pro scene ever again" tribunal, presenting themselves as the bastion of "pre-eliminating all toxicity from online gaming", which is ironically hypocritical considering their scandals after scandals of toxic workplace culture.
Serious competition as a fulfilling grassroots activity? Sure it existed before Riot.
Artificially propped-up unsustainable "professionalization" whose eventual conclusion is to enforce spyware on casual participants? That's Riot's gift to the world.
I remember watching Counterstrike tournaments in CPL in the early 2000s and Intel Extreme Masters in 2007.
LoL (Riot's first big "esport" game) didn't really start having large tournaments until 2011. LoL didn't even come out until a few years after ESL started hosting regular professionalized Counter Strike tournaments.
Kernel spyware is at least 2 decades old, and manual scrutiny of casual participants is as old as networked competitive gaming and cheating themselves (id games had that from the start!). It has nothing to do with money. Moreover, people are paying north of $1k/mo to cheat in video games.