Agent gets paid by the vendor whether bank or company or individual so I don't know what you mean about too good lol. E.g. Sale of 1m house, 2% commission: 20k to agent 980,000 to seller buyer pays 1,000,000. Same thing for rent, commission is from landlord not tenant. Vendor would have priced in the commission.

depending...
banks paid... sometime nope..
so buyers has to pay...