Whilst there may be many dialects of Arabic, a lot of are mutually intelligible.
Also MSA is standard Arabic used for work and education. And its influence is increasing as more Arabs become educated.
Finally Arabic has already has a huge influence spoken in 22 countries and has a religious significance for at least 1.2 billion people.
Therefore, it may not be a worldwide language; in truth, only English can really takes this crown. But it does not make Arabic any less significant.
Also MSA is standard Arabic used for work and education. And its influence is increasing as more Arabs become educated.
Finally Arabic has already has a huge influence spoken in 22 countries and has a religious significance for at least 1.2 billion people.
Therefore, it may not be a worldwide language; in truth, only English can really takes this crown. But it does not make Arabic any less significant.