Adele may have the highest placement on Gaon's actual singles chart, but her single sales would only get her like a top 20 back in the days of 2011. Korean singles used to be $.02 (and often free) from 2011-early 2013 so Adele isn't coming close to a record for most singles sold now that their single prices went up to $.29 and they no longer count free "sales" for their charts.
Adele may have the highest placement on Gaon's actual singles chart, but her single sales would only get her like a top 20 back in the days of 2011. Korean singles used to be $.02 (and often free) from 2011-early 2013 so Adele isn't coming close to a record for most singles sold now that their single prices went up to $.29 and they no longer count free "sales" for their charts.