Why run to change what's not good? (8)

I believe the answer is:

unworthy

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'what's not good?' is the definition.
I can't tell whether this defines the answer.

'why run to change' is the wordplay.
'change' is an anagram indicator.
'why'+'run'+'to'='whyrunto'
'whyrunto' is an anagram of 'UNWORTHY'.

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(Other definitions for unworthy that I've seen before include "Disreputable" , "Not deserving or suitable for something" , "Not deserved, deserving" , "Not good enough" , "Not deserving respect or attention" .)

I've seen this clue in the Irish Times.

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