Songs That Sound The Same

It seems there are so many examples of artists suing other artists for the slightest similarity to one of their songs and I just have to ask... how were the Violent Femmes able get away with such a blatant lift of the The Shadows  - Little B ???

The Shadows - Little B (1963)

Violent Femmes - Blister in the Sun (1983)

And how was Aretha able to get away with this one??

Elijah Fair - Pains of Life (1967)

Aretha Franklin - Chain of Fools (1968)

Isn't the George Harrison rip off of "He's So Fine" the big glaring example of this?

https://youtu.be/AvCbVLZW4EY

https://youtu.be/CnI_LuCJ4Ek

A little off topic, but based on the post title, I immediately thought of this:

https://youtu.be/NHPj5YokEOY

Not to spoil the fun (the thread is closed, and a lot of the videos are defunct):

https://maplewood.worldwebs.com/forums/discussion/songs-that-sound-like-other-songs?page=next&limit=0#discussion-replies-100715

Not the same, but when I was listening to Das Leben (1:04) I immediately thought of Sweating Bullets (0:29)

Rihanna "Shut Up and Drive" and New Order "Blue Monday"

truth said:

Rihanna "Shut Up and Drive" and New Order "Blue Monday"

New Order does get credit for that one, though. 

Carry On Wayward Son and...  (just in the obvious part, that is)

Run Runaway by Slade and South Australia by The Pogues

Anything by Randy Newman and anything else by Randy Newman