能力のある人や努力した人が豊かになることが本当の平等というものだろう。
why did we use が two times in this sentence, and what does the mean of 豊かになること sentences
能力のある人や努力した人が豊かになることが本当の平等というものだろう。
why did we use が two times in this sentence, and what does the mean of 豊かになること sentences
「能力{のうりょく}のある人や努力{どりょく}した人が豊{ゆた}かになることが本当{ほんとう}の平等{びょうどう}というものだろう。」
To comprehend the reason for the double-が, you will need to analyze the sentence grammatically.
What is the grammatical subject of this sentence? It is 「能力のある人や努力した人が豊かになること」. Yes, the subject itself is a mini-sentence that is nominalized by 「こと」.
Since the subject is a nominalized mini-sentence, it just so happens that it contains a が within itself. That is the first が in the whole sentence.
That rather long subject must now take the subject marker, which is the second が. Thus the core structure of this sentence is:
"A が B だろう。" = "A would be B."
A (subject): 能力のある人や努力した人が豊かになること "that those who have abilities or have made efforts become wealthy/successful"
B (predicate): 本当の平等というもの "what should be called 'true equality'"
Hope this helps.