Google is a large well known and well paying company that can get candidates to make that sort of time investment, smaller companies can't because they're just

Google is a large well known and well paying company that can get candidates to make that sort of time investment, smaller companies can't because they're just generic companies that no one particular wants to work for, I'll skip the elaborate test and apply for the next generic company in the list. Aside from that, I really don't have time for these elaborate interviews if I'm already in a job, companies that do this are limiting their potential candidates to the unemployed.