Were you already fairly rich before cashing out bitcoins? Were your banks used to getting huge deposits made to your accounts before the bitcoin stuff started?
My banks were used to seeing large deposits and transfers. Yes. Not sure what qualifies as "fairly rich before".
That million dollars in your exchange account counts as fairly rich to me.
If I tried depositing that much to my bank the cashiers would probably put their hands in the air, while the backroom staff would be ringing the police.