Not much is made about the hereditary Lords because there are also elected lords, albeit by the Government, and because the House of Commons have much more power. The Lords are slowly taking on the role of the Queen, all they do is accept or decline bills from the House of Commons, but they rarely decline because they have cushy jobs and don't want to lose them. The last bill the Lords rejected was the ban on fox hunting. They kept refusing the bill and the commons had to keep changing it but eventually the Lords gave in, they only objected in the first place because most of them are from the upper class and go fox hunting themselves.

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It's the difference between suicide and slow capitulation... - Jim Morrison