The RTL override is necessary for embedding right-to-left content inside left-to-right text. If you ever want to combine Arabic and English in one sentence, you'll probably want an override in there.
You could use HTML and other formatting tricks to do the same, but this control character is a very valid and useful part of Unicode.
You could use HTML and other formatting tricks to do the same, but this control character is a very valid and useful part of Unicode.