1. When evaluating an academician of the Academy of Engineering, he may not meet the standards of an academician, such as scientific research achievements, academic contributions, innovation ability and influence.

2. In addition, the selection criteria and procedures of academicians of the Academy of Engineering are constantly changing, which may be influenced by many factors such as policies, disciplines and academic environment.

In a word, Wang Xinghuan's failure to be elected as an academician of the Academy of Engineering may be the result of a combination of factors, including personal abilities and achievements, as well as selection criteria and procedures.