People will claim that an undergraduate degree is useless but often it's a requirement for a graduate education in Law, Accounting, Medicine; et al.
Sure, you can ignore an education and instead earn a trade qualification and earn $45,000 before I am even in the workplace; but, the longterm differences amounts to you still earning $45,000 (and working in the snow) and me earning $80,000 and working in a heated and air-conditioned office... nevermind, most countries (i.e. Australia) will always take in an accountant, lawyer or doctor; but good luck moving abroad with a trade.
Other benefits like being able to expense meals on the clients' tab, corporation picking up the air fare and bringing you to other parts in the world; et al. No one expenses anything for a plumber / electrician.