Do I need a comma before the word because in the following sentences?

He had to manage all of their salaries, work times etc personally because he didn’t have the money yet to hire other people. He also had to kee

He had to manage all of their salaries, work times etc personally because he didn’t have the money yet to hire other people. He also had to keep them on task.

This ban became handy to Gates because the CCC realized that banning Gates was not the right thing to do because he could actually help them find viruses in their software.

Bill gates is very creative because ever since he was 13, he had an interest in coding and designing operating systems.

Many businessmen have praised Bill Gates for his creativity, good business strategies etc.

or:He had to manage all of their salaries, work times etc personally because he didn\u2019t have the money yet to hire other people. He also had to keep them on task. This ban became handy to Gates because the CCC realized that banning Gates was not the right thing to do because he could actually help them find viruses in their software. Bill gates is very creative because ever since he was 13, he had an interest in coding and designing operating systems.Many businessmen have praised Bill Gates for his creativity, good business strategies etc.

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