What is the standard for the praiseworthy modesty in a man?

What is your opinion regarding a man being extremely modest, to the point where he may get involved in crises beyond his capacity, and it may cause him problems and worries for a long time in his life, or for his entire lifetime?
There must be modesty that does not contradict the Shari'ah.
Modesty that prevents one from enjoining what is right, forbidding what is wrong, or performing what is obligatory is not modesty; it is cowardice, weakness, and incapacity.
There must be modesty that conforms to the Shari'ah, meaning it restrains him from bad character and helps him with noble character. This is the Shari'ah modesty. As for modesty that restrains him from obligations, or from associating with the righteous, or from seeking knowledge, or the like of that, this is not modesty; this is incapacity and laziness.
Q: I mean the modesty that restrains him from good deeds—the good deeds of the religion—but the modesty that may make some people shy away and get involved in services, or engagements, or marriage?
A: He is taught and advised. If there is fear for him, he is advised.