There is always more to be said, but the Engels family did not own the Manchester factory that their son was sent to work in – they were investors in a business owned by Peter Ermen, who was unhappy with the new arrangement and, suspecting that Engels was a spy sent to investigate his running of the firm, did what he could to marginalise him. I discussed all this in more detail in an earlier response, here, and you might like to review that while waiting for fresh answers to your question.