Can anybody help me with this sentence?

Question

I want to emphasize the financial frauds and scandals harm the public and economy badly, but I want some suggestions to fix this. I want to add an adv between to emphasize this because financial fraud is already exist in the past, but in 2002 the scandal was fully disclose to the public and harm the economy badly.

The word that i consider about is "badly."

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Until 2002, financial frauds and scandals endangered the public and economy badly; Congress passed the SOX.

Answer 1

Just drop "badly"--it is not necessary to the meaning of the sentence.

If you'd like to emphasize how "endangered" the public and economy were, you could say "greatly endangered"; but again, the adverb is not necessary to the meaning of the sentence.

Also--I know you didn't ask but--for clarity, you might consider making the second independent clause into a dependent clause:
"Financial frauds and scandal endangered the public and economy until Congress passed the SOX in 2002."

Answer 2

Financial frauds and scandals greatly endangered the public and the economy , therefore Congress passed the SOX in 2002.

Answer 3

"And tremendously harmed the economy."