Question

since while做状语从句连接词

Answer 1

前后两个句子意思是反的~

your opinions are worth considering 你的观点值得考虑

the committee finds it unwise to place too much importance on them （然而）认为把太多精力花在上面不明智~

While 然而~（转折）

since 因为（因果关系）