Impressive this yacht is to be sure but that is its sole purpose, something to show off to a rival. The wealth of the individual(s) able to pour vast amounts of money into such a toy is quite obscene IMHO.
It's not unknown for the things to be bought through the profits of crime and all of us will have heard of Conservative peer Baroness Michelle Mone and her husband, Doug Barrowman. Millions of pounds in profits from a fast-tracked COVID-19 Personal Protective Equipment (PPE) contract were used to fund their ultra-luxury lifestyle, including the purchase of a £10 million superyacht named Lady M. that also frequented Dartmouth Harbour.
