Well class and wealth is of course a huge determining factor too and I also think advantage is a useful adjective, but there's no doubt that if you are white, male and comfortably off you currently have an enormous advantage in life and are more likely to occupy positions of influence. You only need to take a cursory glance at the stats:
Currently women make up fewer than 25 per cent of partners among magic circle law firms, the other four of which are Allen & Overy, Clifford Chance, Linklaters and Slaughter and May.
Last year, Women Count 2019 revealed how there were only 13 female CEOs in the FTSE 350. Indeed there were more CEOs called “Peter” than their were women CEOs in the FTSE 100 until July 2020 (six, versus five). The numbers are now level, after Amanda Blanc’s appointment as CEO at AVIVA on 6th July 2020).
Then of there's the more insidious privilege which is about how much more likely you are to be listened to. This works in all sorts of ways, but to use a really startling example, I noted among the cases of women killed by men that were highlighted around the femicide census that many women's concerns just hadn't been listened to. Indeed one police force fined a women for wasting their time because the man who went on to kill her told an officer that they were still together and everything was fine.
Where you look at geographical/economic disadvantage then clearly there is a difference, white boys and men are likely to do less well in education and earn less than say a white middle class women from London. But we know that women are still more likely to earn less in these areas too.