It figures, why would Google differ from any of the other big fish in the "pond".
There was a time when there were search engines (plural), now there`s "The One" :-)
Here are 7 Search Engines Google Obliterated over time:
Excite (1993 - 2001); InfoSeek (1994 – 2001); AltaVista (1994 – 2003); HotBot (1996 – 2003); AllTheWeb (1999 – 2003); Yahoo! (1995 – 2010); Ask Jeeves (1997 – 2010) (remember the cute waiter with his hand pointing :-))
May they all RIP.
I`m guessing back then, their principals were the same as now "protection of the users themselves and the guarantee of a perfect web experience"... if so... there are much more terrifying things on their "perfect web" then PAID crypto adds!