Based on the passage from "Jane Eyre" by Charlotte Brontë, the noticeable difference between Mr. Rathburn and Mr. Rochester is:
Mr. Rathburn seems to have more interaction with his staff.
This inference is drawn from the description that Mr. Rochester does not frequently engage with his tenants and is characterized as someone who does not live amongst them, while Mr. Rathburn, in the context implied by the modern retelling, appears to foster more interaction with his staff.