No, because the other branches have failsafes, such as periodic elections. But with SCOTUS, if you make a mistake and confirm the wrong candidate for the job, the only remedy is impeachment, which is very hard to pull off (by design). Thus, the standards have to be extremely high.
That was actually my point. The lifetime appointments are given because they want the appointees to act as freely as possible without consequence. This is a result of elections having consequences.