They do treat it as a "cost of doing business" as they do hedge between making a bigger profit through such violations vis the possible fine. But enforced fines like these serve as a warning that the government / regulator / judiciary are serious about enforcing laws and upholding rights. That precedent does discourages such actions because they know future violations will invite similar actions (the punitive fines may be worse for repeat violations) thus making the risks higher. The counter to that is political lobbying, if it is cheaper than the fines, and is also treated as another "cost of doing business".

(Even India has fined them 100s of millions of dollars - https://ssrana.in/articles/google-fined-anti-competitive-pra... ).