I'm not certain what you mean by de facto politician, but Bill did benefit unfairly by picking relatively wealthy parents.
His parents were in the top 20%, not the top 0.000000000000000000001%. He was no better off than 40 million other kids who's parents were in the same income quintile.
"At 13 he (Bill Gates) enrolled in the Lakeside School, an exclusive preparatory school.[22]
"When he was in the eighth grade, the Mothers Club at the school used proceeds from Lakeside School's rummage sale to buy a Teletype Model 33 ASR terminal and a block of computer time on a General Electric (GE) computer for the school's students.[23]
"Gates took an interest in programming the GE system in BASIC, and was excused from math classes to pursue his interest...."
"After the Mothers Club donation was exhausted, he and other students sought time on systems including DEC PDP minicomputers.
"One of these systems was a PDP-10 belonging to Computer Center Corporation (CCC), which banned four Lakeside studentsGates, Paul Allen, Ric Weiland, and Kent Evansfor the summer after it caught them exploiting bugs in the operating system to obtain free computer time.[25][26]
"At the end of the ban, the four students offered to find bugs in CCC's software in exchange for computer time. Rather than use the system via Teletype, Gates went to CCC's offices and studied source code for various programs that ran on the system, including programs in Fortran, Lisp, and machine language.
"The arrangement with CCC continued until 1970, when the company went out of business.
"The following year, Information Sciences, Inc. hired the four Lakeside students to write a payroll program in Cobol, providing them computer time and royalties. After his administrators became aware of his programming abilities, Gates wrote the school's computer program to schedule students in classes."
By the time Bill and his 1590 SAT made their way to Harvard, he had logged the magical 10,000 hours of programming practice time needed to give himself and Paul Allen the head start they needed to form Microsoft.
Without the wealthy parents, Bill likely doesn't get that head start in programming.
Bill Gates - Wikipedia, the free encyclopedia